Make friends with someone you don’t know at school - If you've ever been isolated from others at school or you were new at school and it took time to make friends, you know what it feels like to be left out. Or even if you were never isolated, imagine how it would feel.
Make friends with someone at school who you don't know. You probably wish someone had done that for you.
Be a leader. Take action and don't let anyone at school be in isolation.