Here are a few captured warm up sketches looking at simple shapes and gestures and a few faces. Quick studies to loosen up your thoughts and get the juices going. I used to doodle like this more often. I kept a sketch pad by my desk at the office at all times. Now I tend to do these during meetings or anytime I have a few spare moments. These were all done before I went into to work in the morning. Just let the pencil strokes take you where they may. Something always comes from this if you give it a good 30 min. of play time.