A recent issue of Scientific Mind discussed studies of truthfulness and physical signals. The bottom line: Opportunists or liars tend to display a cluster of four cues: hand touching, face touching, crossing arms, and leaning away. Although none of these individual clues in itself indicated deceitfulness, taken together they provided a highly accurate indicator. How can you benefit from this insight? When hiring an employee or investigating a matter, make sure to challenge the interviewee. If he or she starts displaying these gestures, beware!!