This document discusses peer relationships and gender identity during adolescence. It covers how peers provide information and feedback outside the family. Peer influence can be positive or negative, and rejection leads to issues. Parents influence children's peers through lifestyle choices. Social cognition and emotions play roles in peer success. Bullying negatively impacts victims. Adolescent peer groups include both genders and conformity increases. Friendship provides companionship and intimacy increases in adolescence. Gender roles and stereotypes shape identities and behavior differently for males and females.