Hey.
The MMIs tend to make people more nervous, but try to relax and say what you feel. It's just a way for them to gauge how well you can think on your feet and most people are fine.
For the traditional interviews, definitely have some answers prepared for typical interview questions but otherwise it's a conversation. They want you to make sure they are a good fit for you as much as you want to make sure you're a good fit for them. Good luck tomorrow.
