Alright here's some of the stuff I use:
When you see a group of say 2-4 girls dancing or just chilling with each other, and you haven’t seen these girls dance with any guys or you've seen them say no to some guys. Walk up to them with some swagger, get their attention, say Hey as loud as you need to, then say "Do any of you girls think you can dance with me?" In a ****ing tone of voice, use body language too. I like to put my palms up shoulder height, bend my torso to the side and keep my head vertical. Hold this pose for a couple seconds, if any of them are giving you eye contact look them in the eye for as long they stay looking at you. If one says no then say "alright she doesn't have what it takes, what about you two?" If there's more than a 3 second pause say "Ya, I didn't think so?" as ****y as you can. Wait for a second, then if still no "hey I can dance" then walk away happy. You've given them 3 chances to say yes, if you've got game usually the more confident one of the group will say yes by then, if not then you've still won because if anyone sees you doing this it'll proof you. It looks like you showed them up, not they said no to you. I've had this work on groups of girls who didn't dance with any other guy the whole night. If it doesn't work then they simply will not dance with a guy; you could question if they're lesbian.
The easiest way I know to approach girl on the dance floor dancing is to dance by yourself where she can see you, keep moving closer to her, and you should get some eye contact, if it’s good eye contact, keep doing what your doing and look for it again, if it comes again, then well you are set my friend, just dance right up to her and she shouldn’t move away, then just start dancing with her, put your hand on her shoulder first if you have to, if she faces her back to you as your close and doesn’t move away she is just waiting for you to make the initial contact, do it. If for some reason you only get positive eye contact once do the same thing, it should still work.
If she’s dancing and you just can’t get any eye contact walk up to her, tap her on the shoulder, when she faces you put your hand on her shoulder and say “Let’s dance.” That’s most the confident move I know, not dancing with other guys, not giving you eye contact, you’d better be as confident as hell or she won’t think twice about rejecting you.
This is the move I would try on a HB10. Anyone got a better idea?