This video explains to origins of Pink Shirt Day:
You may have seen this public service commercial on TV:
This video and song "Don't Laugh at Me" is a favourite one of mine with a message kids can relate to:
If there is something happening that you'd like to stop, the first step is to assertively tell the person that you don't like it and they need to stop. If it continues, your job now is to get help from an adult. Saying or doing something back often gets you in trouble and doesn't solve the problem. It will never be a perfect world but we do what we can to help everyone feel included and valued.