Final answer:
Nonverbal communication includes body language and facial expressions, conveys emotions and attitudes, and varies across cultures.
Step-by-step explanation:
Nonverbal communication, also known as body language, is a form of communication that does not involve spoken words. It includes cues such as facial expressions and body movements. One statement that is not true about nonverbal communication is (b) Nonverbal communication is always intentional. While some nonverbal cues may be intentional, many are unconscious and can happen without intention. Nonverbal cues can convey emotions and attitudes and they vary across cultures.