Social media interactions in the form of likes and comments have become a prevalent and expected form of feedback among consumers. However, as these forms of feedback represent social acceptance, content that fails to garner sufficient community reactions may have important implications for consumer behavior, a conjecture supported by an evolutionary psychology account. Three studies demonstrate that consumers use social media cues such as the number of likes that a post receives to shape their attitudes and intentions regarding the subject of that post, and this relationship is mediated by perceptions of social exclusion. Further, the presence of comments can help to attenuate the negative impact of too few likes on perceptions of social exclusion, enhancing consumers’ attitudes and intentions toward the subject of the post.

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Social networks provide an innovative means for facilitating social influence as well as arousing consumer curiosity. However, research on how social influence impacts attitudes and behaviors in this context is limited. Further, even less research exists examining how curiosity impacts consumers' behaviors, which is concerning since curiosity may be especially relevant in an online setting. To overcome these gaps, two studies were conducted which demonstrate that a consumer's curiosity toward a social network post is influenced by the group membership of the individual who created the post. In turn, curiosity leads to more positive attitudes toward the experience described or represented in the post, which leads to higher intentions to undertake that experience. Additionally, consumer susceptibility to interpersonal influence is found to moderate the relationship between group membership and curiosity. If susceptibility to interpersonal influence is strong enough, content posted by a dissociative group member can also arouse curiosity and positively influence attitudes and behavioral intentions.

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