Which of the following best describes a nonverbal communication technique?

Nonverbal communication techniques encompass forms of communication that do not involve spoken or written words. Facial expressions convey emotions and attitudes without the use of language; they can often communicate feelings such as happiness, sadness, anger, or confusion instantly and universally. For instance, a smile can indicate friendliness or approval, while a frown can express disapproval or concern.

In contrast, written notes, direct questioning, and listening attentively involve verbal or language-based communication methods. Written notes are a form of written communication, direct questioning is an explicit verbal interaction, and while listening attentively is a crucial skill in communication, it does not fit the definition of a nonverbal technique since it involves engagement that typically includes verbal responses. Therefore, the best description of a nonverbal communication technique is represented by facial expressions.