I know something you don't know

Do you ever have a secret that's not really a secret but something you know and that you have to let other people know but you like holding onto it by yourself for a little bit so it's still kinda like a secret? (Come on, that makes sense--read it again!) Anyway, I have that. But I think by the time you read this it'll be getting around, so you probably know already. Cool, eh?