Amy Poehler goes to the head of Class Day

Even before she opened her mouth yesterday, Amy Poehler managed to make us laugh. The Burlington-bred star of “Parks and Recreation’’ was the Class Day speaker at Harvard, and as she waited to talk, smart-aleck student Scott Levin-Gesundheit referred to Poehler as the “blond Tina Fey.’’ Without missing a beat, Poehler flipped the kid the middle finger. (That’s what you call physical humor.) To be fair, Levin-Gesundheit’s speech was funny, and even Poehler laughed out loud when the Harvard senior said he’d relieved himself nine times in the Widener Library stacks. An alum of BC — “which some call the Harvard of Boston’’ — Poehler encouraged students to keep an open mind as they embark on life after college. “Other people’s ideas are often better than your own. Find people who challenge and inspire you. Spend a lot of time with them. It will change your life,’’ she said. “You’re here because someone gave you strength: God, Allah, Buddha, Gaga. Whoever you pray to.’’ She also asked the students to be kind to their elders. “Would it kill you to be nicer to your parents?’’ said Poehler, whose own parents were sitting nearby. “They have sacrificed so much for you and all they want you to do is smile and take a picture with your weird cousins.’’