I was never anything close to a Don Juan - I was not good at actively chatting women up. I just learnt to be, I dunno, normal. Listen to women, respond appropriately, make a few jokes, have fun, don't be a prick. It's possibly not great for hitting on someone when you've got one fevered night at a club to impress, but get to know women a bit and come off well, at least some of them will think you're worth taking further. I suspect what potentially benefits is a bit of a take it or leave it attitude, because it makes a person seem relaxed, easygoing and confident. I think people know when someone's desperate or overdoing it like a dog with two dicks, and it often comes off badly.