By ages 3-5, children have established same-gender social preferences and begin actively excluding the other gender. Boys socialize in larger, more competitive groups playing ranked roles, while girls socialize in smaller, more cooperative groups playing reciprocal roles. These same-gender socialization patterns are often reinforced through separate educational experiences, leading to differences in cross-gender interaction styles. Specifically, men are more likely to interrupt women and take longer turns speaking, while women produce more back-channel responses to indicate listening, which men can misinterpret as agreement. The lack of back-channels from men can make women feel they are not being listened to.