How would you ask a girl out?

I'm straight but I've seen plenty of situations where gay/bi guys either hit on me or my friends and no one really cares, we just laugh about it later. If you go up to a girl/guy, start talking and flirting and they start doing the same then obviously you've found someone, just don't be scared about it.

Obviously if you go for the the douche bag/ass hole type (he's probably the one chugging at the bar on a tuesday night and touching any woman he sees) and try to hit on him you might have some trouble with him and his bros, but if you just approach normal (what is normal? you figure it out) looking people I don't think you'll have any trouble.