Know a little about what the store have to offer. Answering questions about general customer service skills
Just do your best! Its a simple interview but your under watch for the next 3 months until your probation is up. Keep going if your willing to do the job.
Be prepared to talk about customers, how you can help their shopping experience and how you can approach customers who don't approach you.
Research and learn about the company prior to the interview
Focus primarily of customer service and how it is important to a retail organisation such as Debenhams.
I would prepare by looking up the company so i have an insight to what they expect of me as an employee.
Be calm and collective
Make sure you understand the focus of the company.