1. Intrapersonal communication refers to communication within oneself through thinking and self-reflection. Examples include privately analyzing why someone spoke to you or feeling happy about receiving praise from a teacher.
2. Interpersonal communication occurs between two or more people and establishes personal relationships. It can take place in dyads, small groups, public speaking, or mass communication through media. Small group communication involves 3-12 people discussing ideas to achieve a goal, while public speaking requires delivering a message to a larger audience.