Cruise slipped into the back of the class but eventually began participating, according to the Associated Press:
Tom even did a jig! Anything for Harvard students! All accounts of the impromptu visit are generally positive, and there are no reports of couch-jumping or rants on postpartum depression.
He joined in with anecdotes and jokes while his lawyer friend taught the excited pupils, and discussed legal issues surrounding being a celebrity.
The actor even stayed behind afterwards to meet with some of the students.
The [student] paper said he shared "advice, stories, high fives, handshakes, hugs, and even at one point an impromptu dance."