Which of the following is an indicator of deception?

• A. Avoid eye contact
• B. Nail-biting
• C. Calm breathing
• D. Clear, confident voice

Answer: (A)

Nonverbal cues used in deception detection often hinge on gaze behavior. Avoiding eye contact is the most likely indicator among these options because people who lie or conceal information commonly try to prevent direct gaze to reduce scrutiny and hide truth-related micro-expressions. In contrast, nail-biting is a general nervous habit that can appear for many reasons, calm breathing signals composure rather than deceit, and a clear, confident voice tends to convey credibility, not deception. Keep in mind that no single cue proves deception; it’s about patterns and context relative to a person’s baseline behavior.