Normally, I would suggest that you try and make an appointment in advance to meet with the ROO/PMS. However, since your college visits are this week, you may have a hard time setting up an appointment. It's worth a shot, though. If you are able to set up an appointment, I agree with previous posters that you want him to take a list of questions and to try and interact with other cadets. We made two campus visits with our DS and had appts. with the ROO's set up in advance. I can't tell you how different the cultures were between the two units! They were so different that my son's original first choice school became his second choice school as a result of the meetings. With one unit, DS had a hard time getting a return phone call, email, etc. Then, when he showed up for his appointment, he was passed off to an underling for the meeting. The format of the meeting was more question and answer. They didn't seem to understand why our DS wanted the "meet & greet" so early (it was December of his junior year of high school). They kinda looked at him like he had two heads. Also, any cadets that were in the offices at the time of the meeting didn't give DS the time of day. The second unit, however, was completely opposite in their approach to the meeting. Emails were promptly answered, the ROO was impressed with the fact that our DS already knew what he wanted to do at such a young age, cadets came up to DS to introduce themselves and engaged DS in conversation. Even though the ROO took the time to answer our son's questions, the format of the meeting was more conversational. The icing on the cake was when our DS met us back in the food court of the college covered in free goodies (Army logo'd (sp?) tshirts, water bottles, backpacks, cell phone holders, etc.). DS thought he'd hit the lottery! Even though he liked the campus & location of the first school better, he was infinitely more impressed with the ROTC program at the second school. One last thing, we chose to NOT go to the meetings with our son. It was our opinion that this was his "gig", not ours. We figured if the ROO needed to talk to us, they could call us on our cell phone and we could walk back over to the office.
Best of luck to you! This is such an exciting time in our kids' lives!