It was with two managers, it was a bit nerve racking but I think it went well for i did do work experience there for a while so if i can do it you can to
I went though 4 different people when I interviewed, and the beauty portion entailed "selling" a product to my future manager.
Quick, easy and next day we got called if we had the job or not.
You introduce each other and they ask you some questions. They then tell you about the job and what you are expected to do.