In my spare time I've also worked on a (rather silly) animation, which has also forced me to learn several other skills, like music composition, drawing, and 3D modeling. It's almost a shame that all the creativity I've poured into this thing resulted in such a silly and pointless animation.
But still totally worth it.
I'm also a bit of a space tech geek. I always keep up with what space agencies are doing, I never miss a prototype rocket launch, and I've stayed up late to watch things like the Curiosity landing or the LCROSS impact.
Also, I once got an Italian astronaut to quote James Bond on Twitter.