04/01/2010 AT 04:00 PM EDT
A dressed-down Leighton Meester
shot pool with a couple of gal pals at Carnival, the circus-themed nightspot inside New York's Bowlmor Lanes. And they were in interesting company: When the Gossip Girl
star went to play some of the boardwalk-themed games, she caught sight of a stilt-walker twirling a hula hoop!