I actually met with a DO on Monday myself. ^.^ I happened asked him a number of questions that are generally on secondaries--not because they are, but because I was curious. Why medicine, why DO, do you use OMM, etc. I also asked him if he's happy with his career path, what he would have changed, what other specialties he liked besides the one he chose. There are many, many good questions to ask--be genuine and ask what you're curious about. What do you want to know about your future? What kind of advice do you think you need at this point?