DD went in November and basically there were briefs by admissions on morning of arrival, followed by a tour conducted by a cadet and then your cadet sponsor will pick you up. You will attend classes, meals, practice, etc. with them for the rest of the visit. DD's visit with her RC was a quick hello and put a name with a face since she is in constant contact with him and knows exactly where she is with her application. If you do not have this type of ongoing counsel with your RC, I suspect an admissions counselor (not necessarily yours) will sit down and give you some tips to improve your file if necessary. As far as what to bring, you will receive a packing list with your confirmation email. Basically khaki/polo for classes, some workout clothes, something to sleep in, toiletries and something to do during study hours (such as schoolwork, book to read).