Some people are just a bit twitchy — always drumming their fingers, tapping their feet, and twirling their hair. Some people are almost unnaturally still. The problem is, others may mistake that for dishonesty or fear.
That might be common knowledge, but Dr. Lillian Glass, a behavioral analyst and body language expert who has worked with the FBI on unmasking signals of deception, previously told Business Insider that you should also watch out for people who are not moving at all.
"This may be a sign of the primitive neurological 'fight,' rather than the 'flight,' response, as the body positions and readies itself for possible confrontation," Glass said. "When you speak and engage in normal conversation, it is natural to move your body around in subtle, relaxed, and, for the most part, unconscious movements. So if you observe a rigid, catatonic stance devoid of movement, it is often a huge warning sign that something is off."
If you can strike a balance between swaying and stiffness, you'll be able to make a better impression with others.