Genuine expressions of emotion rarely persist longer than five seconds and almost never longer than 10. A fixed smile is likely to conceal anger, anxiety, or some other negative emotion.

If Edith Wharton lived in the Age of Innocence, surely we now live in the Age of Deception.

Contempt is the only asymmetrical expression in the muscular facial system: Disgust, fear, happiness, surprise and anger typically express themselves symmetrically. Contempt is marked by one lip corner pulled up and in a dismissive sneer.

Lying is a cooperative act. Think about it. A lie has no power whatsoever by its mere utterance. Its power emerges when someone else agrees to believe the lie.

Business is a battlefield. You need to be able to go to battle with your team members. Like the military. Know them, trust them, and know who you're working with.

Lying is a cooperative act. Think about it. A lie has no power whatsoever by its mere utterance. Its power emerges when someone else agrees to believe the lie.