• to attend the classes, to attend the lectures
• attendant, attendee, caller, visitor
• attendance, call, calling, visitation
• to resort, to resort to
• to call, to call at, to call on, to look up, to see, saw, seen, to visit
• to drop by, to make a call on sy, to pay a call on sy
• playgoer, theater-goer, theatergoer, theatre-goer, theatregoer