Others have made some very good points that I would follow.
Heres a few of mine (a lot of them are the same as others)
1) Yes, look nice. They are going to see you once in their life for just a few minutes. Good first impressions count. If you are in CAP or JROTC or something like that, wear service dress. It shows them your very interested in the military.
2) Act yourself!!!!! If you try to act like someone else, they will see right through you
3) Answer all questions as truthfully as possible
4) WAIT a second or two if you don't know how to answer a question (even if you do). Formulate the answer in your head so you don't rambel
5) If you don't have any idea how to answer a question, ask if you can move on and answer it later so you can give the best response possible.
6) Look at the people you are talking to in the eye--not at their nose, mouth, floor, ect. Give a frim hand shake
7) I know what it feels like, but do your best to relax.
But what helped me the most is to have a mock interview with my ALO. He spent three or four hours just grilling me with questions. Lets just say I crashed and burned that first time, but it gave me enough experence to do well during my real interview. You may not need that, but it helped me than probably anything else.
I'm sorry I can't remember any specific questions--it was a little over 3 years ago for me.
Good luck, and I'll be expecting to see you here next year
