ORAL??????

Okay so what's oral like? Both ways? Giving and receiving. Like I understand that I'm not going to get anything from giving oral other than the satusfaction of making the guy happy. But it just seems so intimidating. Any tips? Also the guy I was with always wanted to go down on me but I never let him bc idk it just seemed kinda weird to me. But everyone always talks about how awesome it is? I think I'm just self conscience