This branching programmed instructional workbook focuses on how people behave when they hear messages. Included are materials on audience/receiver behavior and a self-instructional supplement to materials that are a part of other communication studies. Drawings and diagrams illustrate the discussions of self-analysis, selection of audiences and audience situations, time analysis, and all major audience analysis considerations that help to determine how people behave when they receive messages. If wrong answers are given, the book directs the learner to alternative selections for instruction designed to eliminate the reason for the errors. The book includes objectives at the beginning of each chapter. (RB)