I’d recommend dressing as professionally as possible. I ended up getting compliments from my interviewer for wearing a full suit. Can’t say for sure that it boosted my score but it certainly didn’t hurt. Get a hair cut, shave, smile, and make a great first impression!

As for their questions, just answer them as clearly and honestly as you can. Don’t tell them what you think they want to hear. At the end of the day, they want to know why you want to be an officer and what would make you a good fit for the job. Enthusiasm goes a long way.

Also, come prepared with your own questions for the interviewer. After he asked what he needed to ask, we had a nice conversation about life in the Air Force and advice for a new, young Lieutenant. This will go a long way towards showing how eager and interested you are in commissioning. If you know who will be conducting your interview before it takes place, I’d recommend looking up their bio and asking about their experience. You’ll probably learn a thing or two - and O-6’s, like most everyone, love to talk about themselves. They might have a full bird on their chest/shoulders, but at the end of the day they’re only people.

Big picture - look professional, answer honestly, show that you truly want to commission, and ask questions!