you duck

This is, as they claim, the world’s first smile-activated vending machine.

If you smile [like a crazy person], you get a free cone of ice-cream.

There was quite a crowd here at the Chevron House basement, mostly onlookers. I’m still not sure what’s the purpose of this machine… just to give away free ice-cream or to secretly take mugshots of those hard-up for free stuff? Either way, it looks pretty interesting.
Smile And Get A Free Ice Cream