Blowin o's is easy. i figured it out watching Fight Club. i was listening to the commentary done by the actors. in the last scene, when pitts character says "whats that smell?" he blows out a smoke ring. i assumed it was movie magic, but in the commentary, pitt says its real, and in fact it was the first time he was ever able to do it.
i actually started smoking cigs because i wanted to look cool by doing this type of shit. ive noticed that the only ppl that r actually impressed by this type of stuff r ppl thats respect aint really worth having. u know what i mean? (unless u want to show a chick how u can control ur mouth. girls love that shit.)
but anyway, if u wanna learn to blow o's practice saying "what" in front of a mirror. to do it well, u will need to kinda pop ur throat so the air comes out quick. i can shoot that shit out like a automatic. yeeaah boi!