We attended one of the new student open house events. We emailed the admissions department and area recruiters and they had no problem with it and then registered online. When there we toured the campus, had lunch with students and staff, attended different department class room venues. While there she spoke with professors and admin staff. It’s a way to show interest. There is a cost of flying in and all of that so please don’t take this as what will get you accepted. After the visit follow up with your area recruiter and and admin staff if you are sure this is the #1 school of choice.