A 'welcome' drink - when are they not welcome? - and a wristband in one of three colours on entry here. The blue wristband means that you are available and looking for fun, the red means you are looking for something more serious, white means unavailable and attached. Before the party really gets started at 22:00, from 21:00 for one hour Gosia Mounier teaches us how to dance rock'n'roll and boogie, Grease movie style.