My first interview was with one of the managers. As it is a very high volume store with a large amount of employees they have a rather interesting interview process. She asked what made me want to apply to the company, what I had to offer and the standard interviewing questions. Then she did a few screening techniques to see if I was actually interested in the job vs. for a paycheck (in the process also showed me good sales skills).
After telling me what positions she thought i would do well in she had me select one to apply for (when they suggest one specifically, pick that one as they see you in that position and it can help you get hired) I was scheduled for a group interview later that week. I interviewed with around 12 people or so. I was asked again why I wanted to join the team, what I had to offer, strengths, growth opportunities, etc. Then I was asked to pick something, it could be anything I wanted, and sell it to the manager. Don't assume that because you are stock you won't have to sell something. Stock associates get asked all kinds of questions by the customers and your coworkers about the product, so you will need to be knowledgeable after a decent amount of time.
About a week later (they do check your references so make sure that they are good ones and it takes time so be patient) I got a call with a job offer. I've been with the company ever since and am working my way up the ladder!