From a guy who is not an ANG pilot, answering #2 with my past experience: Do your own research, learn as much as possible about the airframe, unit, and mission on your own. Then ask the questions. Your questions will be more educated, genuine, and ultimately peak your own interest; therefore, likely to lead to more meaningful conversations and connections.
Telling you what to ask is not you being yourself. The quickest way for them to turn you down, is for you to ask some BS questions with the sole purpose of leaving a lasting impression to get an interview. They will see any hubris or mock version of you. Just be yourself and you will be perfectly fine. Good luck!