Final answer:
Nonverbal communication involves symbolic gestures and expressions that are learned through one's culture. Some gestures are universal, while others vary across cultural contexts. Body language and facial expressions also contribute to nonverbal communication.
Step-by-step explanation:
Nonverbal communication is symbolic and is learned through one's culture. Some universal gestures include smiles for joy and tears for sadness. However, the meaning of other gestures can vary across cultural contexts. For example, a thumbs-up represents positive reinforcement in the United States but is an offensive curse in Russia and Australia. Body language and facial expressions also play a significant role in nonverbal communication. Furrowed brows and folded arms indicate a serious topic, while smiles and open body language suggest a friendly chat.