Since my history has been started by bullied in high school, I can give you this for starters. Tell them that should be proud of who they are and they don't have to change for anybody. If you were bullied, include that in you presentation, but leave names because of you secret identity. Always say that they are a lot of methods on dealing with bullies, it depends on your approach, and remember saying it isn't a cookie-cutter method. Tell them to accept the traits of others, remember, even victim should know that they are in the same boat as them. Give them a pep talk to succeed in life. And in the end, give time to listen to others while about their stories, and be their friend, not some celebrity who would refuse to give a fan an autograph.