I was at in-n-out the other day and saw a beautiful 5 set, unfortunately I was actually there to eat and didn't do anything, but I came up with a technique that I have yet to try it out. But let me know what you think...
You open the set like you normally would.
I'd like to show you a magic trick that demonstrates a persons connection to identity, it'll just take a second, *pull out pen and paper* I'm going to look away, I need you to each write down your name, and your phone number right under your name. Then I'll tell you who's is whose by interpreting the hand writing. *They pass it around and right it down* Great! thank you ladies you've been wonderful, *turn to walk off, then jump back* no just kidding, examine the hand writing, look around the table, do some Kino with their hands. Make up some bullshit, guess correctly or not, but you're in and got the numbers.
Like i said, haven't had a chance to Field Test it or work out the kinks, but what do you think?