Which of the following behaviors can weaken interpersonal communication?

Negative body language can significantly undermine interpersonal communication because it often conveys disinterest, hostility, or discomfort, even if the verbal message is intended to be positive or neutral. Nonverbal cues, such as crossed arms, lack of eye contact, or fidgeting, can create misunderstandings and may lead to a breakdown in communication. When individuals exhibit negative body language, it can create a barrier to effective dialogue, making it difficult for others to feel valued or understood.

In contrast, the other behaviors listed—using respectful language, engaging in active listening, and showing empathy and understanding—are all essential for fostering effective communication. They build rapport and trust, encourage a safe environment for open dialogue, and help clarify intentions and meanings during interactions.