Quite straight forward. We had a group interview where we were instructed to introduce the person sitting next to us. This was an opportunity to break the ice and for the panel to see how well we interacted and were capable of memorising details. Then we had a tea break, shortly followed by an exercise where we were handed briefs about a difficult customer situation and asked how we would handle the faux situation. After that, we were given a harder exercise where we were given another fake scenario and had to choose from a list of names and examples, who we would choose to stick on a boat and who we would choose to stay on an island. This was a test of leadership and capability to listen to other's opinions. All in all, straightforward practices. Bit nervewrecking.
The key factors are to speak up but don't talk over others.