I interviewed for Banana Republic which is under the GAP. It was a group interview with about 8 to 9 other candidates. The interviewer asked us all questions like name some examples of customer service you have performed, name an example when you were criticized for something..and so on. Typical interview questions like, why do u want to work here? What can you bring to BR.
If you are confident and can answer the questions, you can make it. Speak out and ask questions, make yourself stand out from the group and you will be fine. And dress up from the interview, a few people had jeans on. BR had a dresscode if your hired, slacks/dress pants..etc.