You obviously don't know the difference between a STILL photograph and a video. Sad. That's why I purposefully chose a picture of Joe having a staring contest with a four year old.
THEY TOUCH THEIR FACE, MOUTH OR THROAT. THEY REPEAT THEMSELVES. 'IT'LL COST ZERO - ZERO - ZERO...'; THEY PAUSE BEFORE ANSWERING. THEY LOOK TOWARD THE DOOR. SUBCONSCIOUSLY, WE LOOK WHERE WE WANT TO GO, SOMEONE WHO IS UNCOMFORTABLE MAY LOOK TOWARD A DOOR. THEY DON'T BLINK. SOME AVID LIARS HAVE LEARNED TO TELEGRAPH CONFIDENCE, SO INSTEAD OF BREAKING EYE CONTACT, THEY WILL STARE AT YOU AND NOT BLINK.