Eavesdropping by way of looking over his shoulder

The guy next to me in this coffee shop is looking through the contents of a manila envelope: a bunch of index cards with ads for male escort services taped onto them. He's maybe early 40's, looks like he's done some serious drinking in his time, is not Williamsburg hip nor terribly gayish, though now [not surreptitiously enough at all] studying him in the context of the index cards, who knows, who can tell anything. All the cues shift so much. He's sort of middle-aged beer-bellied Abercrombie & Fitch, with that preppy almost military haircut, which could be lots of things.