Socialising plays a big part in the Cannes Lions festival schedule. So, following his call to arms at yesterday's seminar, Improv Everywhere's Charlie Todd last night briefed what must have been 200-250 delegates on their improv mission for the night: to create the most exclusive party in the whole of Cannes.
And create they did. And then some. For over half an hour, people queued patiently to enter a 4m x 4m square space and - well - dance to their own music and generally have a good time.
For those who took part, a great big thank you from Hill & Knowlton and Charlie Todd. For those who didn't, just look at what you missed: