Whatever you want to talk about. Maybe tie it to the opener.
Let's say you open with:
Blazen: Hey guys my friend just told me the weirdest thing and I wanted to see try it out really quickly.
hbs: ok. what is it?
Blazen: Quick think of a colour. The first one that pops into your mind! What is it?
hbs: Umm yellow
Blazen: Hmmm I guess you wanna know what it means right?
hbs: Yea
Blazen: Nothing! I was just messing with you guys
hbs: *hits you*
Blazen: Hey now this shit ain't for free

I was messing with you again. It actually means something.
hbs: what?
Blazen: Yellow means that you have a bright, fun personality that you love to share with everyone but you only really open up to you real friends.
hbs: oh my god that's so true.
That's a cool opener I came up with. It's long because I wanted to show you to just be fun and go with whatever happens. It's got a little follow through as well into what's known as cold reading. You can look up some quick cold reading lines on google or maybe on the forum.
Cold reading is telling someone something about their personalities without actually knowing them. It's a universal truth in essence. I just made up that shit about the personality and stuff because it's true for 99% of people
Anyway once you've got her intrigued it's time to carry on the conversation or go dance. At this point you can ask her things like does she believe in mindreading or esp, maybe palm reading whatever you want. Or you can cut the thread and talk about something else. You can talk about the weather once you get there right
Say something like let's talk about something interesting now, nice weather huh?

Just have fun.
Of course opening is only a small part of it. We've got time constraints and all that good stuff to consider. I'm hoping you know about these stuff. I'm sure we can help you through it.
I recommend you go try a few openers out at the mall or something. Get used to it. The more you practice the better!