Everyone learns to control their face. Years of socialization, professional environments, and the simple need to function in polite society train people to manage their facial expressions, maintain appropriate eye contact, and modulate their voice. What almost nobody learns to control is what happens from the knees down. The feet are the most honest part of the human body precisely because they receive the least conscious attention. While a person is carefully managing the impression their face makes, their feet are telegraphing exactly how they feel, where they want to go, and what they are actually thinking about the conversation...