My interest is basically in the computing world. Mostly I spend time reading interesting articles over the web just to kill time. Often I play games in my PC, but most of the time I practice my web development skills in theory and in application. I often caught my self focused on the things that caught my attention or on the things that I need to get done.
I also play badminton and basketball as a regular sport to loose things a bit and to unburden. It really helps me think.