Mary-Kate Olsen Parties with Her Sister Elizabeth in N.Y.C.
03/08/2012 AT 06:00 AM EST
It was a young crowd inside, and the sisters spent their night at a VIP table surrounded by friends. While they never got up and danced, the ladies were enjoying the music spun by deejay Cassie Coane, who's a close friend of the Olsens, as well as conversations with each other. – Carlos Greer