Always make sure your body language matches your verbal communication. When your body language and words clash, your body language will have the greater impact.
You rarely get a second chance to make a favorable impression. It only takes four minutes to lock in a negative impression.
To create rapport using body language, face the other person, assume an open posture, lean forward, maintain eye contact, and shake hands.
Always present yourself in the most advantageous way possible. Dress to communicate authority, competence, and professionalism.
To deepen rapport, mirror the other person's posture, language, and rate of speech.
Control your tone of voice, speed of delivery, pitch, and volume to project confidence and authority. Use pauses for impact.
To detect deceit, look for contradictions and verbal mistakes. Watch for clashes between the verbal and nonverbal messages.