Which of the following is a type of non-verbal communication?

Body movements are a crucial aspect of non-verbal communication, encompassing gestures, posture, facial expressions, and eye contact. These forms of body language often convey messages and emotions that may not be easily expressed through words. For example, crossing arms might signal defensiveness or discomfort, while maintaining eye contact can indicate confidence and interest.

The other options involve forms of communication that are verbal or written. Written words are explicit verbal communication, while spoken language includes any dialogue or vocal expression. Sound effects, while they may convey certain feelings or thematic elements in communication, do not constitute non-verbal communication in the same way that body movements do. Therefore, focusing on how body movements communicate underlying feelings and attitudes highlights their role in non-verbal cues crucial for effective interpersonal interactions.