Budweiser lets you make friends with a clink

It's an age old tradition across the globe, you say "cheers" (or regional equivalent) then 'clink' glasses, an almost universal symbol.

Now American beer brand Budweiser in Brazil wants to make this social act, even more social, with their Buddy Cups.

The smart cups detect the contact between them and adds the other person as a friend on Facebook, this is done via a chip in the bottom of the cup and a code which you scan with your smart phone to activate it.

The cups are reportedly going to be used for events and concerts, but how far afield no one is sure.

Watch a video about the new cup below.