The Half-Naked City

Improv Everywhere invited New Yorkers to ride the 6 train on Saturday sans pants. The partly dressed gathered at Foley Square and rode the train uptown, completing their ride with an impromptu dance party at 125th Street. Participants read or listened to music, but none of them mentioned that they weren't wearing pants. Even improv has its rules.

Knee socks

New Yorker, right, pretends not to notice anything.Photo: Everett Bogue