The document discusses functions of communication. It describes several functions including regulation/control, social interaction, motivation, information, emotional expression, and expressing opinions. It provides examples of each function and notes that communication serves different purposes. The document also discusses verbal and non-verbal cues speakers can use including pauses, loudness, rhythm, repetition, tone, language, gestures, eye contact, posture, facial expressions, and proxemics. It provides activities for students to identify communication functions in video clips and evaluate speakers.