I interviewed in front of a panel of 5 veterans (was not expecting that!) part of the Legion post. They did not ask me anything about Boys State. They just wanted to get to know me better to see if I was the right fit and to see how interested I was.
They mostly asked about my application packet (resume and essay) just asking about my community service, job, soccer, our city government etc...
I was chosen to go the next day...I think they liked that I was just being myself, and I showed them that I really wanted this. They definetly know when you are BS'ing them and when you're actually answering from the heart.
Lastly I gave each panel member a firm handshake thanking them for taking their time out of their day to interview me.