You’ve seen them on the Homewood campus—students guiding groups of wide-eyed prospective students and their families as they depart from Mason Hall or walk along Charles Street near the Beach. For many Johns Hopkins applicants, visiting the campus is one of the first—and most critical—opportunities to get to know the university. And with upward of 48,000 visitors coming for tours in 2018, making sure everything runs smoothly is no easy task.