Vanessa Van EdwardsScience of People, Science Of People · Behavioral Researcher, Founder, Author, Harvard Instructor

How Your Hands Subtly Reveal Your Real Intentions I @jackneel

3 Mar 2026 · 1 min

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In this presentation, the speaker stresses the importance of keeping hands visible during interactions, arguing that hidden hands can feel like concealment even if no deception is intended. They outline four primary channels through which humans convey signals: verbal (the words used), non‑verbal (gestures, facial expressions, posture, movement), vocal (tone, volume, pace, cadence), and ornaments (personal adornments such as nail care or jewelry). The talk focuses on hand gestures, noting that both the motion of the hands and the ornaments they bear (rings, nail polish, etc.) provide rich information about a person. A key reliability cue highlighted is incongruence—when spoken statements do not match gestural evidence (e.g., claiming three ideas while holding up five fingers). The speaker also claims that liars tend to use fewer gestures because they have rehearsed their verbal content and thus allocate less subconscious energy to gesturing, making a lack of gesturing a potential indicator of deception.

Chapters

I don't look directly at your hands, but I want to make sure they're visible. I don't like when they're under the table or behind your back because it feels like you're hiding something, even though I know you're probably not. You're probably just at rest. There's four different ways we send signals. Verbal, the words we use, non verbal, our gestures, our facial expressions, our posture, how we move through the world, our vocal, how we say our words, our volume, our pace, our cadence, and our ornaments. Ornaments are how I keep my nails, the kind of jewelry that I'm wearing. Your hand gestures are two different areas. One, how they move, but they're also ornaments. Like, what does that ring me? That told me a lot about you. We don't like is when there is incongruence. If someone says, I have three different ideas, and I hold up the number five, and that's a reliability cue. Liars typically use less gesture because they've practiced their words. They've spent all their energy on the verbal content. Subconsciously, we love a gesturer because we're like, ah, they're probably telling the truth.