Descriptive norms reflect perceptions of whether other people actually engage in the normative behavior themselves, and motivate action by informing people about what is likely to be effective or adaptive behavior in a particular context. Considering the differences between the two types of norms [11,12], our research focuses on the latter, as they tend to motivate behavior in the immediate context in which others’ behavior occurs or can be observed. The effectiveness of descriptive social norms has been observed in pro environmental behaviors, including energy and water conservation[6,13,14].