Understand It's the Behavior, Not the Child
Some parents react with blame and shame when learning their child is exhibiting bully-like behaviors. But most bullies aren't bad kids. They're often children having difficulties coping with some aspect of their lives, or perhaps they're being bullied or abused themselves.
If your child is behaving aggressively, remember these behaviors are probably coming from your child's feelings of fear, insecurity and vulnerability. Watch the child's interactions with others, and find ways to get the child to talk to you or another trusted adult about what's causing him or her to feel and behave this way.