Another human being, yet another I had never seen before. What did this one know? Was he happy? Was he cruel? Did he worry? The more I stared at his face, the less I understood him. This is not unusual, the same procedure happens whenever I examine a person either on photograph or in reality: in my first glimpses I always think I can read someone fairly quickly, that the snap judgements I make are surely accurate, but the more I observe the less I understand, the more I realize how difficult the art of judging a person is.