Non-verbal communication: what your body tells you without words

What do your hands say? How is your back positioned? And what does it mean when someone doesn't look at you? Non-verbal communication takes place in the space between words – in gestures, facial expressions, posture, and tone. If you learn to read and use this language, you gain access to a much deeper level of human connection. This is essential for anyone who wants to communicate better, whether you are in sales, a manager, or simply want to collaborate more effectively with colleagues.

Research shows that 55 to 93 percent of communication is non-verbal. That may sound extreme, but when you think about it, it makes sense: your image, your energy, and your trustworthiness are largely determined by what your body says, not by your words. A strong presentation without body language feels hollow. A good story lacking eye contact arouses suspicion. Conversely, someone with modest words but powerful non-verbal signals can make an incredible impression.

In this article, we delve deep into what non-verbal communication is, how to read it, and how to use it to communicate more effectively. These are skills that can transform your career and relationships.

What is non-verbal communication?

Non-verbal communication is everything you communicate without using words. It involves your body posture, your facial expression, your gaze, your hand and arm movements, your tone of voice, your pace, and even the distance you maintain from someone. It is where authenticity becomes visible – your body lies much less than your mouth.

Non-verbal signals are universal and at the same time culturally determined. Eye contact signifies attention in many Western cultures, but can be perceived as rude or indecent in some Asian cultures. A closed body posture indicates defensiveness in almost every culture, but the nuances of what exactly 'closed' means can differ.

The most important thing is that non-verbal communication happens unconsciously. Your feet point where you want to go, even if your mouth says something else. Your pupils dilate when you find something interesting. Your muscles tense up when you are uncertain. This makes non-verbal language extremely valuable if you want to understand what someone really thinks or feels.

Forms of non-verbal communication

Non-verbal communication manifests itself in various ways. Let's walk through the most important forms.

Facial expression is probably the most expressive form of non-verbal communication. Your face can express fear, trust, interest, boredom, and twenty other emotions. Interestingly, the six basic emotions—happy, sad, afraid, angry, surprised, and anxious—are recognized across all cultures. Your face is a mirror of your inner state.

Eye contact is a form of facial expression that carries so much power that it deserves special treatment. Who looks at you and for how long says a great deal. Prolonged eye contact without blinking can express intimacy, but it can also come across as threatening. Too little eye contact arouses suspicion or suggests shame. The right eye contact creates connection.

Body language encompasses your posture, how you sit or stand, and how you make your movements. Someone standing upright with open shoulders looks confident. Someone sitting hunched over with crossed arms looks defensive. Your body posture influences not only how others perceive you, but also how you feel about yourself. This is known as embodied cognition.

Important issues

Gestures are movements of the hands, arms, and head. Illustrative gestures emphasize what you say – think of spreading your hands to indicate something big. Emblematic gestures have direct meanings, such as a thumbs up for good or a wave in greeting. Adaptive gestures are what you do when you are nervous – brushing your hair, drumming your fingers, scratching.

Prosodic signals concern the tone, tempo, volume, and pauses of your voice. You can say exactly the same thing in three different tones and create three different meanings. Whispering suggests intimacy. Shouting suggests strength or aggression. Speaking slowly can express wisdom or may appear incompetent. A higher tone at the end of a sentence suggests uncertainty.

Proxemics is the study of how you use space. The distance you keep from someone communicates a lot. Intimate distance (up to 45 centimeters) is for family and close friends. Personal distance (45 to 120 centimeters) is for friends and acquaintances. Social distance (120 to 360 centimeters) is for formal situations. Public distance (more than 360 centimeters) is for presentations.

Appearance and demeanor are also forms of non-verbal communication. What you wear, how you style your hair, and how you maintain your body communicate something about yourself. In professional settings, this is even more relevant: clothing and grooming signal respect and professionalism.

Why body language is more important than words

This is a core realization: if your words do not match your non-verbal communication, people believe your non-verbal communication. This is the basis of why non-verbal language is so powerful.

If you say you are enthusiastic about something, but your eyes look away and your shoulders are hunched, your conversation partner will believe your non-verbal signals, not your words. They will feel that something is wrong. This is why you sense so much when someone lies – their body and face do not match their words.

This works the other way around as well. If your words are cautious, but your body is open and your face radiates warmth, someone will trust you. Non-verbal communication works because it is harder to control. You can choose your words, but your legs, your eyes, and your heartbeat are harder to control.

That is why non-verbal communication is essential in sales, leadership, and relationships. It is not just about what you say – it is about who you are and how you feel. Your body always betrays your true intentions.

Non-verbal communication in the workplace

At work, non-verbal communication takes place in meetings, one-on-one conversations, and team gatherings. A manager who listens to you with closed arms feels different from a manager who sits up straight and gives you their full attention.

When you present an idea in a meeting, non-verbal signals largely determine whether people take it seriously. If you pace nervously and don't stand still, your audience will perceive your energy as fickle. If you stand still and open, they will take you seriously.

Eye contact is essential in building trust at work. If you look people in the eye when you say something important, they feel heard. If you look down, they feel ignored.

Body language also determines your influence. Someone with an open chest and relaxed shoulders feels more leader-like than someone slouching. This is no coincidence – your posture influences your biology. Standing upright and opening your chest leads to more cortisol and testosterone, hormones that promote self-confidence.

Non-verbal communication in sales and customer contact

In sales and customer contact, being able to read non-verbal signals is the difference between a deal and no deal. Mirroring—subtly adopting your prospect's body language—creates unconscious rapport. If they are cautious, you are cautious. If they are open, you are open.

Look for signs of interest. Is someone leaning towards you? Are their pupils dilating? Is that person nodding? These are green lights. Look for signs of resistance. Are they looking away? Are they crossing their arms? Are their lips tightening? These are red lights.

Your facial expression must be warm and authentic. A forced smile feels fake. A genuine smile—one where the corners of your eyes wrinkle—feels sincere. This inspires trust. Your energy level must match that of your customer. An over-inspired sales representative who speaks loudly can be off-putting. A well-tuned sales representative listens more than they speak.

Improving your own body language

Now that you understand how powerful non-verbal communication is, how do you improve? This requires awareness and practice.

Start by recording yourself. This is uncomfortable, but incredibly educational. Record yourself while you present, have a conversation, or explain something. Watch back. How do you look? What are your hands doing? What is your facial expression like?

Practice intentional posture. Stand upright, shoulders back, open chest. This feels unnatural at first, but this is how improvement works – the unnatural becomes natural through repetition.

Work on your eye contact. Practice looking people straight in the eye without staring. The rule is: look at someone 60 to 70 percent of the time. In a group, you can direct your gaze around.

Ensure smiles that reach a certain point. A genuine smile comes from the eye and mouth together. Practice this. It sounds strange, but it works.

Make conscious gestures. Gestures that illustrate your words without distracting you. Avoid adaptive gestures when you are nervous—they signal nervousness. Instead, if you feel nervous, focus on your feet and your breath. Your hands will follow.

Common mistakes

Many people make the same mistakes in non-verbal communication. Here are the biggest culprits.

Too much arm movement is confusing. Your audience gets distracted. Make deliberate gestures that underscore your points, not all movements.

Looking down robs you of power. Whether you are nervous or seeking concentration, your gaze downwards feels like insecurity. Keep your head up.

Crossed arms feel defensive. Even when you are relaxed, crossed arms create a barrier. Keep your arms open.

Standing in the same spot all the time is boring. Move purposefully. Use different parts of your speaking space to reinforce your message.

A forced smile is fake. People can sense this. If you are not smiling sincerely, don't smile at all.

Non-verbal communication and leadership

Leadership is non-verbal communication in action. The best leaders use their bodies to project confidence, direction, and certainty.

A manager who stands with closed arms during a team update sets the tone for defensiveness. A manager who is open, sits upright, and looks at their team with warmth sets a tone of safety.

Strong leaders use moments of silence. They do not speak continuously. They pause. These pauses allow their words to sink in. Weak speakers fill moments of silence with “um” or “uh”.

Non-verbal communication also determines whether you feel present as a leader. An executive who looks at his phone while listening to a team member is not present. An executive who concentrates fully, who leans back and listens with eye contact, is present. This creates psychological safety. This creates loyalty.

Communication training with Kenneth Smit

Non-verbal communication is a skill you can learn. Just like any skill, you improve through knowledge and practice.

Kenneth Smit offers training courses in effective communication that focus on these skills. In the training “Effective Communication” You learn how to read non-verbal signals and use them to communicate more effectively. You practice in groups, receive feedback, and see immediate results.

The training Communication with Impact delves deeper into advanced techniques, including non-verbal communication in presentations, negotiations, and leadership. These are practical training sessions where you truly practice the skills that will transform your career.

The next step is to sign up.

Frequently asked questions about non-verbal communication