Clever deceivers rarely tell outright falsehoods. It’s too risky. The art of deception is closely related to the magician’s craft: it involves knowing how to draw attention to a harmless place, to deflect it away from the action. Deeply entrenched patterns of perceptual, emotional, and cognitive dispositions serve as instruments of deception. A skilled deceiver is an illusionist who knows how to manipulate the normal patterns of what is salient to their audience. He places salient markers—something red, something anomalous, something desirable—in the visual field, to draw attention just where he wants it.
we live now in circumstances that encourage rather than discourage lying; evidence and activity are more easily concealed, and the need to rely on demeanor as an indicator of a person’s truthfulness is greater. And our evolutionary history has not prepared us to be very sensitive to the behavioral clues relevant to lying.