What do emblems in nonverbal communication do?

Emblems in nonverbal communication are gestures that have a specific, generally understood meaning within a cultural context and can directly substitute for words or phrases. For example, a thumbs-up gesture conveys approval and can replace saying "good job" or "yes." Emblems are often culturally specific, meaning their interpretation can vary across different societies. This ability to effectively replace verbal communication with a simple gesture is what distinguishes emblems from other types of nonverbal cues, making option B the most accurate description of their function in communication. While enhancing verbal messages, controlling communication pacing, or showing personal feelings can all involve nonverbal communication, emblems are specifically characterized by their role in substituting words.