You will choose an available station and, at the start of the time, will be given a prompt. You will leave the room and have 2 minutes to read the prompt and figure out what you would do in the situation. You will be given 2 minutes to come up with a response upon which you will be called back into the interview.
At your table, you will have 8 minutes to talk about your situation; the two vets who are interviewing will have the opportunity to ask supplemental questions and perhaps give you advice on presentation, dress, etc.
After the first 10 minutes are done, you will rotate to a new station and repeat the process. After you've done two different interviews, the session will be done.
Here are a couple of links that might be helpful if you haven't already looked up information about the MMI style:
Please be sure to come a few minutes early so we can start the sessions right on time; we don't want to keep the doctors waiting! Check in with our officer at the start of the session so they can confirm the session.
Dress professionally, as you would to an actual vet school interview. Slacks, khakis, etc., are all appropriate dress forms. Jeans are not.