Since I was a kid, I've always been busted in the classroom for making doodles and sketches all over the place. My childhood friends when seeing me again, they would ask, "So you still do lots of sketches wherever you go? Just like the old days...?" The answer is, Yes. I will still keep sketching until the world ends. It is also a fantastic way to turn ideas into reality.
My favourite activity is to make sketches of colleagues, friends and family.