"When interviewing candidates for the role of store manager, employers are looking for positive leaders that can steer the team towards assisting customers, managing merchandise, and keeping the operation moving smoothly. In an interview context, be prepared to answer questions about your ability to sell a product, resolve issues, and create an enjoyable work environment with strong customer service. You should also be ready to discuss any previous experience in sales or retail."
Will ask a lot of questions concerning your job performance. You know, the norm... "what you would do in certain situations" , Give them a time when... , that sort of stuff.
Just be yourself :) The DM is great to talk to!