Three main approaches to studying intercultural communication are discussed: the social science approach, the interpretive approach, and the rhetorical approach. The social science approach uses methods like surveys and observations to describe and predict behavior. It views reality as external and human behavior as predictable. The interpretive approach assumes reality is subjective and human behavior is creative. It uses methods like field studies to understand how culture is created and maintained through communication. The rhetorical approach examines texts and speeches in their original contexts.