If you want to try out games with a purpose go to http://www.purposegames.com/ Instead of just jumping over barrels while you shoot bad guys you can instead test your knowledge of countries, cities and more.
Another thing, at the subway today a guy sitting on the other side was obviously talking someone sitting opposite of him. At first I found his way of talking quite strange, I was never sure if he was singing or talking. Then when I had a closer look I realized that he was infact all alone, and he was sitting there singing. Not whole songs, just bits and pieces. Obviously a bit weird. Almost scarry when things like this happens, never sure what to expect of such guys…