Understanding the motives that drive tipping is key to predicting and influencing this behavior. This chapter presents evidence that people tip to help servers earn a living, reward good service, get or keep good future service, get or keep social approval, and fulfill a sense of obligation. It also presents evidence that tipping is constrained by desires to save money and concerns about its status implications. Common misperceptions about these motives for and against tipping are discussed along with the practical implications of both the motives and misperceptions for all the stakeholders described in Chap. 1 .