This will be hard for a lot of people to answer because many are poor judges of how they interview, and/or how interviews went.
Here's what I've written in my guide to interviews:
Being unprofessional for any reason. An example is addressing a faculty member by their first name. Another is chewing gum during the interview. If you have a dry mouth, suck on a lozenge instead. BTW, the interview lasts all day. Acting unprofessionally during your tour, like yelling at a parking attendant, or trashing the school, or expecting the Admissions Office staff to hang up your coat or fetch you coffee is duly noted and affects your fate accordingly.
Not taking the interview seriously, like showing up poorly dressed. This is suit and tie time (and nice dress/outfit/suit for the ladies). You're going into character. Yes, if the airline loses your luggage, we understand that.
- Do NOT be arrogant. People who think that they're God's gift to Medicine do not go into Medicine.
Being too shy or nervous. Being quiet is OK; being monosyllabic or robotic is not.
- Not making eye contact is also a no-no (yes I'm aware that in some cultures, one does not look elders in the eye, but this is the USA and you need to look people in the eye here).
- Any hints of immaturity will be lethal for your chances. We expect you to be thoughtful and self-aware. Would you admit the gal who, when asked a hypothetical, "What would you do in this situation?" answers, "Oh, that wouldn't happen."
- Showing any hint of entitlement. This includes the “I was accepted to XSOM, so what are you going to do for me?” The answer will be “Good luck and have fun at XSOM.”
- Being clueless as to why you're choosing Medicine as a career.
Doing this because your mom/dad wants you to be a doctor (or don't think you can be doctor).
Completely lacking people skills (4.0 automatons are a dime a dozen, really).
- Showing that you're more interested in research than Medicine. This might be OK at Stanford, but it won’t fly at most other schools.
- Still being the hyper-gunner...I rejected a 4.0 gal who wanted to answer the questions I asked of another person in the interview panel. I don't want to admit someone who will be in my office whining about how they got a 95 on an exam and deserved a 96.
- Having a flat affect. This might be due to medication, or a mental or personality disorder. You ever meet someone who could never crack a smile? I don't want someone like that touching patients.
Copping an attitude. I asked a woman why she didn't have any volunteer experience. She replied that she was too busy working. Fair enough, some people have lives, but she copped an attitude while delivering this, and I just wrote down "reject".
- Coming in with scripted answers and being unable to deviate from said script.
- Being ill-prepared for fairly common interview questions (e.g. Why this school? Why Medicine?)
- Thinking that always circling back to your accomplishments and how great you are impresses us.
- Making excuses for misdeeds. We had rejected someone once who had some fairly benign misdemeanors, but blamed it on the policemen who gave him the tickets.
- Don’t do show and tell. I don’t want you pulling out a binder with your resume or portfolio. Let your application speak for you.
- Being a babbling idiot. These are those people who can't answer a question concisely. I've sure you've met people like this...why bother using one word when ten will do? I suspect that they’re thinking for an answer while they're speaking, so the mouth is going while the brain tries to come up with something.
- It’s OK to gather your thoughts, but it’s not OK to blank out. This group includes the people who do something like this (and I am NOT making this up!):
goro: So tell me about this trip to Honduras
Interviewee: Well, we went there for a mission trip and...what was the question?
goro: (thinking: reject!)
Or the guy who, when asked "
How does your hobby relate to the practice of Medicine?", and can't even say "
It doesn't", and definitely can't even BS an answer, but sits there in a coma?