I went, and wore a suit to find that it was formal so that was good (all though there was a Persian guy that wore a tracksuit). Went really well, They made us play this weird bingo game to "break the ice". then we had to do a little presentation to the group about, what we'd done for the past 18 months, what we are proud of, what we want to do with our life and our hobbies. They then gave us a mystery object (we got an egg slicer) and we had to do a selling pitch to the rest of the group.
Went well and thanks everyone for the advice