Facebook "likes" could predict someone's self-described personality better than an evaluation from a friend, family member, roommate, or coworker, likes were solid indicators of everything from religious views to drug use. This wasn't just a matter of expressing support for the Republican Party or an activist group; looking for links between likes and what's known as the "big five" model of personality elements: openness, agreeableness, extraversion, conscientiousness, and neuroticism.