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.

#thyroidproblems
Yes, Hillary is very accomplished at lying and not giving it away. However, her credibility is not supporting her statements.