Last night I went to meet a friend in Williamsburg to see the Mike Birbiglia flick, “Don’t Think Twice” at 9:30. Innocent enough, right? Almost. As I approached the theater with one earbud in, one out (for safety) someone came up from behind me, put his hand in the crook of my elbow and declared a breathy, “Hey,” into my ear. It was very startling. For a split second I thought, “This has to be someone I know, fucking with me.” Why else would someone do that? Who could be tha