Have you ever wondered what happens when you cry in space?  Me neither, but a Canadian astronaut on the International Space Station posted a video where he simulates it by pouring a little bit of water into his eye.

Obviously there's no gravity, so the tears don't stream down his face.  Instead, they stick to his cheek and form a big ball of water next to his eye.

He does it with a little bit of water at :27, and adds more at :43.  This guy actually does a whole serious of videos, to show kids how things work in space.

I especially liked the one about 'How to Wash Your Hands in Space':