A sense of geometry. It’s something I try to apply when I photograph a scene. Others call it the decisive moment. It’s not easy. Sometimes I don’t quite manage to shoot just at the right time, but I try. Everything is a question of practice. As I walk through the streets I come across lines and arrows that flag the potential for a good photo. Than all I have to do is wait for the scene to set itself in some way. A subject appears, stops, and looks at me. That’s the moment to give it a click, and I have my photo.