The liar trap
It’s never a single touch that exposes a con man. But when it comes to the Pinocchio gesture, this is one of the surest signs that someone is trying to pull the wool over your eyes. Reason: When a person is telling a lie, his blood pressure usually rises. That increases blood flow to the tip of the nose, stimulating the nerves there— a sensation similar to an itchy nose. The liar starts rubbing it. And now the key is to watch where the hands wander next. If they head over to the mouth or neck or they rub the cheeks, game over— caught red-handed!