What exactly does it mean to "just be yourself"? 10 points for most detailed answer!?

Being yourself means not changing yourself when you are with other people. Meaning acting talking behaving the same with everybody. If you behave in a certain way with your friends and family then you should behave the same way with the person you have a crush on and not try to be like somebody else. It means if you are the type of person that would talk to random people and not stay quite then you should talk to the people in your hip hop class. Unless of course they have a restriction on talking during the lesson. Otherwise be yourself and talk.