08/24/2011 at 12:00 PM EDT
was ready to dance until the world ends! The actress threw her hands in the air after arriving at one of her favorite spots
, Trousdale Lounge
in L.A. Once she was at her table in the backroom, Greene greeted her friends with hugs. She seemed especially into the Britney Spears
tunes, and she jumped up and twirled around to the music with one female friend, refreshing herself with cocktails in between dances. Also in the backroom: a subdued Chris Hemsworth
, who was more interested in people-watching than dancing.