My tips would be just stay calm and be personable. They didn’t throw any curveballs at me- just basics like why optometry, why midwestern, how do you study, tell me something interesting about yourself etc. I had young and friendly interviewers and they called me a couple days later to tell me I’d been accepted so the process is quick. Remember to smile and you’ll do great!
OH and you do a lottttttttt of walking on the tour so bring comfortable shoes!