Meaning: if you dress different than everyone else, or act differently than most, it is easier for them to make fun of you instead of trying to understand you.
I wish I could tell you that these people change, but in most cases they don't. What you have to do is change how you allow them to affect you. Stay strong and know that you are in charge of your own destiny and the keeper of your dreams, no one else! Work hard in school, sports, acting; whatever it is you are good at and enjoy. Because when you grow up, you are going to change the world!
No one can make you feel inferior without your consent. ~Eleanor Roosevelt