Interpersonal communication occurs between people in a face to face situation . They are able to see each other and observe facial expressions and other non verbal behaviour while they are exchanging verbal messages.
Small group communication refers to communication within a group of between three and twelve to fifteen people . People in groups usually share a small purpose or goal which brings them together.
In public communication or public speaking, one person addresses an audience in a public setting such as a lecture hall or auditorium . Public speaking is more formal than interpersonal or small group communication . The event is planned in advance and the speaker is introduced and delivers a speech that has been prepared to meet the goals of the particular situation .
Mass communication is communication to large masses of people who do not know each other and who are usually not in the same place . A distinguishing characteristic of mass communication is that it is mediated . That is the message reaches you through a mechanical or electronic medium such as print or television .
Nonverbal communication defined as nonlinguistic behaviors (body movement, vocal tone, facial expressions, etc.) that are either sent with intent or interpreted as meaningful by receiver