When boys bully it's a physical thing. When girls bully it is often more subtle - the dirty looks, the taunting notes, or the exclusion from the group...In Odd Girl Out, Rachel Simmons focuses on these interactions and provides language for the indirect aggression that runs through the lives of girls. These exchanges take place within intimate circles - the importance of friends and the fear of losing them being the key. Without the cultural consent to express their anger or to resolve their conflicts, girls express their aggression in covert but often deeply damaging ways.