Flirting is just a case of being brave and remembering to hold that eye contact (if you can get eye contact) long enough to smile or wink before you look away. Oh and then remember to look back of course to see what the effect was
Takes a brave man though. Takes me an hour or so to get out of shell mode and warm up at social events. working on it. I'll either get better and faster or give up. Hay that could apply to dancing too