Edward T. Hall was a social anthropologist who studied nonverbal communication. His research found that less than 35% of social meanings in a conversation are conveyed through words, while at least 65% are transmitted nonverbally. Facial expressions and the eyes are particularly important for silent communication and can express feelings like fear, anger, sadness, surprise, and happiness. The face is an important indicator of one's mind and inner state. Being aware of nonverbal cues can help avoid misunderstandings during interpersonal interactions.