Blinking is a very good sign of LYING.
That’s how I always knew my kids were lying to me .. and of course, I never told them my secret.
Watch Bush when he speaks. Any time his mouth starts to move, he blinks incessantly.
Sometimes he blinks as often as four times in one second.
It’s amazing.
Coulter said a while back that Jeb! always looks like someone just punched him in the nose and he’s trying to fight back tears.
That is exactly what it looks like.
Public Liars know that trait.
Conversely, the eye saucer stare from somebody like Hillary, when she responded if she had ever lied to the public, is an over compensation to avoid being identified as a liar by blinking their eyes.
She looked like she had propped her eyelids open with matchsticks.
The problem with relying on known, obvious “tells” like that is that accomplished liars know quite well what those “tells” are and control themselves so as to not provide them. People who are basically honest have little to no reason to monitor their physical reactions to lying. I believe you can train yourself to pass a lie detector test, too.