As someone who has been there-- I cannot stress how important it is to
relax. I didn't get any interview feedback when I was admitted, but I can say with 100% certainty that I almost crashed-and-burned in my second MMI station-- not because it was tricky, but because I got uncharacteristically nervous because it was my first med school interview and I knew that I had lower stats than most of the applicants that day.
Which brings me to the first lesson I learned...
Definitely talk to your fellow applicants on interview day (90% of them will be some of the kindest and most helpful people that you'll ever met)... But
walk away from that small group of gunners who are boasting about stats, IIs, etc.-- they will do everything in their power to rattle you (Disclaimer: this is not a MUCOM thing-- this is an every med school/grad school/job/etc thing).
Anyway, I got so overwhelmed in that second station that I eventually fessed up and blurted out, "Sorry, I'm really nervous". In the time it took for my interviewer to say, "That's what MMIs are for-- to see how you react under pressure", I had already taken a deep breath and regrouped. It was not my finest and/or most articulate moment, but being honest and taking 2 seconds to get back on track helped me finish out the last 1-2 minutes on a much stronger note. After walking out of that station, I made sure that I took a couple of moments to breathe, chill out, and get my act together before entering each subsequent MMI. My next interview was by far my best MMI station, and I finished out the day strong... I even walked away having
enjoyed the interview processes and having learned a lot of new/interesting things from my interviewers.
So lesson #2-- have a plan to keep your nerves in check on interview day.
Remember that every single interviewer has been in a high-stakes interview before, and every single applicant is nervous, so everyone knows exactly what you're going through and there's no need to put added pressure on yourself.
Don't let nerves get the best of you-- this is your time to shine!
If you find yourself getting overwhelmed, slow down your speech. If it gets really bad, just take a moment to take a deep breath--- or whatever it is--- that gets you to collect your thoughts.
Two seconds of awkwardness to get back control of your feelings is worth salvaging your entire interview.
Oh, and definitely get lots of sleep the night before.
Best of luck!