Impressions

"He's like a professor—he's got the glasses and a high-dollar vocabulary."

At the other end of the comm, Finch blinked. As any man will who spends his life eavesdropping—even a man with a highly developed talent for being discreet—he had by now overheard quite a few descriptions of himself. He was accustomed to remarks about his height, his limp, his hair, and various other physical characteristics that presented themselves prominently to the casual observer.

Out of all these easily discernible traits, Fusco had noticed his vocabulary?

Perhaps there was more to the detective than he had thought.