People form an impression of you in just one tenth of a second, 100 milliseconds, before you’ve even had a chance to speak. And that first impression isn’t random. It’s your body language and energy doing the talking for you. This snap judgment comes from a survival function of the brain. Research from Princeton University shows we rapidly assess traits like trustworthiness, competence, and warmth almost instantly. That judgment is made by the amygdala, the brain’s threat detector, long before t