The interview focused on personal questions like your interests and past experiences. They also had a writing sample for you and they give you a decent amount of time to respond to the questions, I didn't feel rushed at all when I was writing. But as far as the questions go, don't be nervous, none of them were out of left field or anything like that and they were very friendly and it was all very relaxed for me. I'm sure you'll do just fine, don't worry!