That's where Anheuser-Busch InBev ( BUD) and Facebook ( FB) enter the picture. To attract new, younger drinkers they've come up with a connected drinking vessel they call the Buddy Cup for socially-conscious, next-gen Budweiser drinkers. Here is how it works. Budweiser has created special plastic cups for use at "sponsored" events. Earlier generations used to call them "mixers". The beer is sold (possibly at a discount) in these new "Buddy Cups" to help youngsters start a conversation (in case the alcohol doesn't work). Buddy Cup users first have to register their cup on a Web-connected smartphones by scanning the QR code on the bottom of the glass. I'm hoping they let you turn the cup over and scan before they fill it. Too messy otherwise. Once you find another person with a Buddy Cup that you think you'd like to talk to both of you can "clink" your glasses together (hopefully without spilling the beer) and getting close enough for the wireless NFC chip/electronics in the bottom of the glass to make a connection. Now you've become instant Facebook "Buddies". The electronic hook-up will also be noted on their Facebook timelines.
For visual confirmation, a little red LED lights-up on the bottom of your glass to let everyone else know. I'm guessing you can drink your beer and talk at this point. And you were wondering what all those features on your new smartphone were really for.