What should i wear to Chicago's Gay Pride Parade?

I'm a 14 year old female and I'm straight, but i support every sexuality, and this is my first time going to the Gay Pride Parade and i was wondering what i should wear. I have some cute rainbow knee high socks that i could wear and some rainbow bracelets, or should i just dress plain. I saw on other posts that some people so ''all out'' and go in costumes and stuff like that. I just want to have fun like,everyone else. What should i do?