Quotation by Ashley Montagu

In states of perplexity men will rub their chins with their hand, or tug at the lobes of their ears, or rub their foreheads or cheeks or back of the neck. Women have very different gestures in such states. They will either put a finger on their lower front teeth with the mouth slightly open or pose a finger under the chin. Other masculine gestures in states of perplexity are: rubbing one's nose, placing the flexed fingers over the mouth, rubbing the side of the neck, rubbing the infraorbital part of the face, rubbing the closed eyes, and picking the nose. These are all masculine gestures; so is rubbing the back of the hand or the front of the thigh, and pursing of the lips.