Consumers have been able to engage in the continual process of creating social media advertising messages by interacting with them (e.g., clicking on ‘like’). The exposures to other consumers’ interactions with ad messages on social media would contribute to creating normative perceptions, which in turn would influence attitudes toward the interaction behaviors and subsequent behavioral intentions. Considering a stronger tendency to conform to norms for Koreans than Americans stemming from their collectivistic (vs. individualistic) cultural values, this study examines the differences in the relationship among three types of normative perceptions (i.e., subjective norms, personal descriptive norms, and personal injunctive norms), attitudes toward interacting with Facebook sponsored stories, and behavioral intentions between Koreans and Americans. The survey findings indicate that personal injunctive norms were a stronger predictor of behavioral intentions for Koreans, whereas subjective norms and personal descriptive norms were stronger predictors of behavioral intentions for Americans. This study contributes not only to the research stream of cross-cultural advertising, but also to social media advertising.