i did my groupie in november and have only just started working for them cos i was basically forgotten by my store.
umm, from what i can remember of the interview they made us introduce ourselves to the person next to us, then we had to introduce our partner to the group.
they then talked about pay rates and the brands and general job descriptions for each dept. we were then given a little scenario "what would you do if a customer had ordered a cake for a birthday a week before and comes in the day she needs it and its not available" .... there were all various things much the same as this that each table in the interview had to deliberate over.
once completed, they gave us a list of things to prioritise eg. customer wanting direcions, injured workmate, spill, phone call and a long queue of angry customers to deal with. just make sure all the safety ones are at the top of ur list but its all pretty straightforward.
towards the end we had to do some tests like matching barcodes and basic stuff within a time limit- dont rush it... better to not finish and get them all correct than rush and have 50% wrong. (they like to see that ur accurate under pressure)
there are no specific questions that ul have to answer on ur own cos its a "group" thing. just ensure ur not too loud, nor too quiet and that u speak with a point not just for the sake of standing out.
at the end theyll ask for ur references and whatever else they have asked u to bring n thats basically it. dont stress, they were all friendly at mine and try to get u laughing.
just a hint, try and wear black and white so they can picture u as one of their minions as i hear this helps.
let us know how u went