We consider most people in our lives “acquaintances.” Only a select few rise to the level of “friends.” What distinguishes the two groups? Self-disclosure. Both men and women report that being able to freely and deeply disclose is the defining feature of friendship (Parks & Floyd, 1996). Self-disclosure between friends means sharing private thoughts and feelings, and believing (like Gayle and Oprah) that “we can tell each other anything.” The relationship between friendship and self-disclosure is reciprocal as well. The more you consider someone a friend, the more you will disclose, and the more you disclose, the more you will consider that person a friend (Shelton, Trail, West, & Bergsieker, 2010).