The document defines bullying as any willful attempt or threat to inflict injury on another person. It discusses reasons why some kids bully, including witnessing violence at home, having trouble following rules, or seeking control and power over others to make themselves feel better. The document also provides tips on how to identify bullies based on their behaviors, what bullies look for in victims, and advice for kids on how to respond to bullying, including telling an adult and not fighting back.