Introduction
Every day, we communicate far more through our bodies than through our words. The way we move, dress, gesture, and position ourselves reveals a constant stream of information — whether we realise it or not. According to former FBI agent Joe Navarro, who spent 25 years studying human behaviour and catching spies, nonverbal signals tell us who we are, how we feel, and even what we might be hiding.
What Are Nonverbals?
Nonverbals include everything that communicates meaning without words — commonly known as body language. They include posture, facial expressions, gestures, clothing choices, and even how we walk. From the way we tilt our heads to how we shake hands, these cues influence how others perceive us.
As Navarro explains, we rely on nonverbal communication constantly — to judge trustworthiness, detect danger, or express comfort. Even before speaking, our presence tells a story.
Debunking Body Language Myths
Many popular beliefs about body language are inaccurate. Navarro addresses some of the most common myths:
- Crossed arms do not always mean defensiveness.
While often interpreted as “blocking behaviour,” this gesture frequently serves as self-comfort — a kind of self-hug when we are anxious, tired, or simply cold. - Eye movement does not reveal deception.
People may look in different directions when processing thoughts, but this does not indicate lying. It simply shows mental activity. - Touching the face is not a sign of lying.
Behaviours such as rubbing the nose, clearing the throat, or covering the mouth are pacifying actions — natural self-soothing responses, not proof of dishonesty.
Navarro reminds us that there is no Pinocchio effect — no single movement can reliably indicate deception. Humans are poor lie detectors, even trained professionals.
Reading Behaviour: What the Body Reveals
In his FBI work, Navarro focused on assessing behaviour rather than making quick judgments. Every part of the body — from hair to feet — can transmit clues about a person’s state of mind:
- Hair and Forehead: Signs of grooming or stress. The forehead often shows tension or worry through small muscle movements.
- Eyes and Brows: Redness or rapid blinking can suggest fatigue or anxiety. The area between the eyes (the glabella) reveals discomfort through subtle frowning.
- Lips and Jaw: Pressing or sucking in the lips often reflects disapproval or restraint.
- Shoulders and Neck: Raised shoulders indicate stress, while head tilt shows relaxation or interest.
- Hands: Interlaced fingers or “steepling” (hands forming a peak) suggest contemplation or control. Placing hands on the hips often signals dominance or impatience.
- Feet and Legs: Movements such as leg brushing or wiggling feet can indicate nervousness or restlessness.
Navarro emphasises that these cues should not be judged in isolation — they must be read in context, observing changes and patterns rather than single gestures.
The Meaning Behind Handshakes and Personal Space
In most Western cultures, a handshake is the first physical contact between people — a powerful moment that shapes first impressions. The simple act releases bonding chemicals in the body, determining whether we feel connection or discomfort.
Equally important is personal space. People naturally adjust their distance to feel comfortable, and discomfort often shows through shifting posture, rocking, or stepping back. Observing how individuals manage space offers insight into their comfort levels and confidence.
Body Language at the Poker Table
Navarro compares reading people in espionage to reading poker players. Both situations rely on observing reactions to stimuli. At the poker table, every movement — shifting in a chair, holding cards tightly, or pulling hands away — reveals emotional states.
- Players pressing down their cards may signal increased confidence or the value of their hand.
- Moving hands away from the table may indicate discomfort or uncertainty.
- Shuffling chips repeatedly is often a self-soothing behaviour to manage tension.
Navarro’s conclusion is memorable: “You can have a poker face, but you can’t have a poker body.” Somewhere, the truth always leaks through.
The Science and Significance of Nonverbals
When Navarro began his career in the 1970s, nonverbal communication was rarely taught. Today, research confirms what he observed in the field: we are never not communicating.
Nonverbal cues influence every aspect of human interaction — from selecting partners to negotiating deals or sensing danger. They carry gravitas because they shape perception, build trust, and reveal emotional truth.
In essence, the body speaks louder than words. Whether through a simple handshake, a raised eyebrow, or a subtle shift in posture, our nonverbals constantly broadcast who we are and how we feel.
Final Thought
Nonverbal communication is not about judging others — it’s about observing and understanding. As Joe Navarro’s experience shows, awareness of these silent signals can help us navigate relationships, detect discomfort, and connect more authentically.
Words may tell a story, but the body always tells the truth.
