Nova doors and Norman

Donald Norman had a cute piece in his "Everyday Things" book about cues for how doors open.

Was I the only person who seemed to have no better than a 50-50 chance of remembering when to push, when to pull on the doors going out of the GSCIS areas where our classes were held during Institute Week? The door handles were oddly 2-dimensional in appearance to me. The lack of depth, I think, was what continually confounded me.

Even now, I can't remember the right answer. Fire code.... exit is push, right? Was it that way??