I like to sketch when I'm out and about. Sit in a café watching people buzz around a busy market. Sketching faces I see in restaurants, on trains, in waiting rooms. Imagining their lives. When you do this it is amazing how many people look like characters from a Tintin book. I also sometimes like to paint portraits in oils. I like how you build a relationship with the sitter. Or can be inspired by a photograph of someone you have a relationship with.