Eye contact and body language have long been considered tell-tale signs of cheating, nervousness, sexual attraction and lying.
But U.K. psychologist Professor Geoffrey Beattie, dean of psychological services at Manchester University, said many people have no idea about the secret messages their feet are giving out.
According to his research, if a woman fancies someone and is laughing, her foot will move away from her body and she will have an open leg posture.
If her feet are crossed, or tucked away under her body, then she isn't attracted to you.
Beattie found that feet tell us more about a person than just sexual attraction:
— Liars keep their feet unnaturally still to try to distract people away from their fibs.
— If a man is nervous, he will show his feelings by increasing his foot movement. Women, however, do the opposite and keep their feet still if they are nervous.
— Arrogant people also keep their bodies more in check and also use less foot movement.
"The secret language of feet can reveal a great deal about our personality, what we think of the person we're talking to and even our emotional state," Beattie said. "They are part of the body from which we have the least internal feedback."