Which of the following is a nonverbal communication method?

Body language is a vital nonverbal communication method as it encompasses all the physical behaviors and gestures that convey meaning without the use of spoken or written words. This includes facial expressions, posture, eye contact, and gestures, all of which can significantly influence how a message is received and interpreted by others.

In contrast, written instructions, verbal instructions, and charts and diagrams are all forms of communication that utilize words or symbols to convey information explicitly. Written and verbal instructions involve the use of language, while charts and diagrams represent data or concepts visually but still rely on recognized symbols and wording to be understood fully. Thus, body language stands out as the unique method that communicates meaning through physical presence and actions rather than through verbal or written forms.