I had a group interview with 4 others, and 2 interviewers. We sat on yoga mats on the floor. My friend had been to one of these before so she told me to wear athletic clothing. However, the other people were not wearing athletic clothing. It was okay, though, because I was wearing subdued colours, and had a kimono-style cardigan to dress it up a bit. Next time I would wear something nice, not too casual, but not at all business-like. The interview was fine. It was my first group-interview so I was a bit nervous and did not know what to expect. I tried to take initiative when answering questions, and be as relaxed as I could. At the end of the interview, we had the opportunity to teach the group something. A couple of people had known about this prior to the interview, and were prepared. I couldn't think of anything unique on the spot, so I declined.
I did not receive an offer.