tl;dr new opener i've only tried few times at random parties and i think it has potential....

Target
-2 set
-really helps to know one of the girls (even if its just a name)

approach set and say something along the lines of "wow [girl 1] whos you're friend [girl 2]" and before she can answer interrupt her and say something like

"she's really cute... I'm totally going to hit on her. What should i say?"

*when you say the above...make sure you get close to girl 1 and talk in a low hoarse voice to sound like your trying to whisper but make sure you do it loud enough so girl 2 can hear you*

from my experience you'll get a decent reaction which will allow you to do a ton of different things like....

1) ask girl 2 a really vague trivial question that you know the answer to (the more trivial it is the funnier imo)

PUA:So girl 2, do you live in the US?
G2: yeah
PUA: What?! no wayyy! I live in the US... man we have so much in common. We were totally meant to be

she will obviously say yes and you make a big deal about how you and her have so many commonalities

some variations
1) do you like ice cream?
2) something that is appeals negatively to everyone (ie. idk brussel sprouts be creative) same idea as above but over exaggerate how much you hate X

2) do some kino

PUA (whispering to girl 1) : I'm totally going to put my moves on girl 2
either do some standard kino or yawn and put your arm around her (again be creative)

some random notes:
-if girl 2 blushes call her out for having a crush on you... if she doesn't blush... still call her out
-be as overly sarcastic as possible. By doing it this way you are stating you are obviously not trying to get with girl 2
-i think you have to have a certain personality to pull the routine off
-combine with a shit ton of other routines at your leisure

ie ask to see her ring and then slip ring on her hand and say that you're married now etc etc
-probably most important----be as over the top as possible

thats all i have right now

Ábyss