Edward Hopper's "Chop Suey" reveals a painter who didn't understand other people. The 1929 canvas shows two women sitting at a restaurant table in shot-reverse-shot: one facing us, one at a three-quarter angle with her back to the viewer. We can't tell much from the face of the woman we can see. Like many of Hopper's people, her eyes are black ovals, and her lips are closed, expressionless. Hopper won't let her let us in.