Easy; panel of three people who took turns asking questions. One of them rolled their eyes at one of my answers but I couldn't tell if it was because of what I said or if there was something in their eye. They ended up not going through with the offer after contacting more than the number of references I had already provided, which was very excessive considering I had applied to a part-time job and I have years of customer service. The person who called for references asked an inappropriate question to one of my recommenders, which I found to be unprofessional. I got the sense they were trying to find any reason to reject, so ultimately I dodged a bullet.