"Intuition is not subliminal perception; it is subtle perception and learning-- knowing without knowing that you know. Chess masters often "know" the right move to make even if they cannot articulate how they know it. People who are highly skilled in identifying "micromomentary" facial expressions are also more accurate in judging lying. In testing college students, psychiatrists, polygraphists, court judges, police officers and Secret Service agents on their ability to detect lies, only the agents, trained to look for subtle cues, scored above chance. Most of us are not good at lie detection, because we rely too heavily on what people say rather than on what they do."