Talk to the hand?
Wonder what this means?
Thanks to Panda K for the heads up on this:
Bar Code - The non-verbal language for meeting, flirting and connecting with anyone, anytime, anywhere.
Not much use to me since I’m married, but all you happy singletons out there can go give it a try… 
Just don’t come and scold me if you accidentally slip up and show the wrong sign.
Or finger… 