I live in the Netherlands and am currently a medical student.
I found it a good idea to contribute to Wikipedia. It's easy (...eventually), and it is good to add knowledge to the wiki which is such a global project.
I've had some experience in working with another wiki before I joined here, but that was some years ago. So this is not all 100% new to me.
Since I'm a med student, I try to work on medical articles (seems like the medical section needs some work anyway).
Among some of my hobbies are vector drawing. I use Xara X¹ which is one of the most powerful vector drawing programs.