These crazy people:

decided it would be a good idea to smile really big at the UPS guy as he was delivering packages.

They smiled, waved, and knocked on the window (courtesy of MeMe and Lilly). I wish I could've captured the guy's face. Oh. My. Gosh. He turned around when they knocked with this half amused half have-these-people-lost-all-their-marbles look. 

I think he was relieved to get back into his truck! :)