This document summarizes key aspects of consumer behavior in the context of services marketing. It discusses the three stages of the consumer decision making process: pre-purchase, service encounter, and post-encounter. In the pre-purchase stage, consumers seek to satisfy needs and evaluate service alternatives. During the service encounter, interactions range from high-contact to low-contact and can be understood using frameworks like moments of truth, servuction systems, and a theatrical metaphor. In the post-encounter stage, customers evaluate performance and determine satisfaction based on whether expectations were positively, negatively, or evenly matched. Delighting customers requires unexpectedly high performance that arouses positive emotions.