The well-known geographic divides are apparently: same-sex marriage gets more support in the more liberal Northeast and West, less in the South. Additionally, Facebook found that 30-year-olds were the most likely to change their profile picture, with around 3.5 percent doing so. The data also showed that, unsurprisingly, those living in college towns were the most likely to change their profile pictures. Sure, it’s great that people feel comfortable to publicly show their support for such an important issue, but does changing your profile picture really make a difference? Maybe.

Melanie Tannenbaum of The Scientific American argues that while changing your profile pictures to show your support for same-sex marriage certainly won’t have an impact on legislation, it could affect your Facebook friends. In her article on the subject, Tannenbaum explains that people can be influenced by what they perceive to be social norms. If someone sees that all of his friends are pro same-sex marriage, he may feel that such an opinion is the social norm and be more likely to adopt it himself.