What is a fun childish thing you still do as an adult?
For me, it's sticking my hand out of the window of a moving car. Whether I'm driving or not, I love having the windows down and waving my hand in the wind. I've loved it since I was a child and I'll never stop doing it!
It's not that often that I'm in a car I'm not driving anymore, but when I'm a passenger you can bet your ass I'm imagining a little ninja dude running along side the car, doing sick ninja flips over stuff on the side of the road.