In what way can nonverbal behavior contradict verbal messages?

Nonverbal behavior can contradict verbal messages primarily by poorly reflecting the speaker's intended tone. When someone communicates verbally, they may express a message of confidence or agreeableness. However, if their nonverbal cues—such as body language, facial expressions, or tone of voice—do not align with this verbal message, it can create confusion or indicate insincerity. For example, if a person is saying "I'm excited to be here" while crossing their arms and looking away, the nonverbal signals may suggest disinterest or discomfort, thus contradicting the verbal message.

The other choices do not directly relate to how nonverbal behavior can contradict verbal messages. Enhancing the speaker's confidence and promoting better understanding indicate positive interactions where nonverbal behavior aligns well with verbal communication, rather than contradicting it. Being intentionally vague pertains to a lack of clarity rather than a direct contradiction between verbal and nonverbal cues.