This document discusses intercultural communication and provides definitions and theories related to cross-cultural interaction. Intercultural communication describes communication problems that can arise when people from different backgrounds interact. It seeks to understand how people from different cultures act and perceive the world. The document then outlines several theories focusing on outcomes of intercultural communication, accommodation/adaptation, identity negotiation, communication networks, and acculturation. It provides examples like communication accommodation theory and co-cultural theory. Finally, it discusses improving intercultural communication through careful listening, understanding cultural differences in communication styles, and investigating other cultures' perspectives.