Tim Roth is the star of the hit t.v. show "Lie to Me". The Lightman Group is an organization created by Cal Lightman and Gillian Foster. The Lightman Group reads people's facial expressions and body motions to figure out whether the person is lying or telling the truth. Some people may say it's easy, but will come to know that there is more to a smile. A person's smile can tell much more than what it means; like the Duchenne smile and the Pan Am smile. A Duchenne smile is a genuine smile which is different than a Pan Am smile which is a fake smile expressed only by the mouth, not the eyes. Cal Llightman can read that with ease. The more the emotions get mixed together and the more pressure on Cal, the more he has to rush to make decisions on which emotions the person is portraying. Happiness, Sadness, Surprise, Anger, Disgust, Fear, and Contempt are the seven primary emotions. Those emotions can get mixed together which makes Lightman's job more difficult. He makes mistakes. Or maybe he just read Lilienfeld's textbook and practiced looking at different emotions of people on flash cards.
Although we know he didn't read the textbook, could any particular person read it and gain the same "powers" Lightman does? In the show, a character named Ria Torres is a TSA at the airport, but can read people's faces almost as good as Lightman. This shows that some people do indeed have the natural ability to read people's faces and expressions.
Without knowing what Lightman does, some may assume he is actually reading people's minds. It seems this way through his unique way of reading people's faces. He can tell what people are thinking and whether they are lying or telling the truth. Although some people may say that anyone can do this, is that really the truth? Would I be able to read your face and know what you're thinking? We all can if we put in the effort and practice. See for yourself.