The speed of a head nod tells you more than the nod itself. When someone nods fast while you are still speaking, it rarely means agreement. More often it means "I'm done — please finish," or "I've already understood your point, move on." The slow nod is the one I watch most carefully. When a person already knows the truth and you continue to lie to them, you often see that deliberate, unhurried nod. That slow yes is far more dangerous than any quick one.
I taught a version of this at the National Forensic Science University, because these are the same cues I use when training interrogation officers. The single principle underneath all of it: every gesture is read in clusters and in context. No one movement proves a lie. Anyone who tells you a single tell equals deception is selling you something.
The shoulder: where concealment shows
The full shrug — both shoulders up, palms out — is our honest way of saying "I don't know." The cue I flag in training is the one-sided shrug. Any incongruent gesture, where the body says one thing while the words say another, suggests concealed information. If I'm talking to you and one hand is steady while the other drifts up in a half-shrug, something inside me isn't matching what I'm saying. That mismatch is your invitation to ask more.
I have watched several Bollywood celebrities do exactly this. When they speak about a subject they are confident on, the body is symmetrical. The moment they touch a topic they feel shaky about, the lopsided shrug appears. It signals under-confidence, sometimes a complete lack of it.
Illustrators versus pacifiers
The hands give away two very different states. Illustrators are the gestures we use to explain — describing a boat, a view, an idea, the hands moving in time with the words. They show engagement and fluency. Pacifiers, or self-soothing gestures, are when a person touches themselves non-sexually to calm down. Picture in-laws asking when you plan to have a baby and you answer, "Actually, I'll think about it," while your hand goes to your neck or rubs your arm. That is a pacifier. It usually means "not now, I'm uncomfortable" — not necessarily a lie.
What the legs do and don't say
The most common question I'm asked on Instagram is what crossed legs mean while standing. Honestly? Most of the time, nothing — beyond needing the washroom. Context decides everything. For deception detection I look for a cluster of at least three congruent cues before I form any read, and even then it only tells me where to ask the next question, not the verdict.
Your listening face is talking
People reveal themselves not just when they speak but when they listen. We all have a listening-feedback phase — the expression and posture we hold while taking something in. One well-known YouTuber has a distinctive listening face he wears through every interview, and you can read his interest from it. My suggestion: record yourself watching something that genuinely grips you, then notice your own listening signature. If you want accurate information from another person, your face has to stay neutral and unbiased, or you will lead them.
The Ranveer Singh moment
Many of you watched India's World Cup matches and remember the Bollywood faces in the balcony — Ranveer Singh among them. He is known for high energy, which works wonderfully for him and overwhelms a few others. In one silent clip, mid-celebration, there's a single beat where he checks whether the camera or screen is still on him. That tiny glance is the giveaway: the energy is partly performed for the lens. It isn't a flaw, it's awareness — and awareness is a cue too.
None of this is about catching people out. It's about reading patterns honestly, holding them lightly, and remembering that the body suggests, it does not confess.