Arlo's very modest about himself in that way. He won't really talk like he's on the level for Harvard or anything, especially when he makes dumb jokes. But he'd love to answer questions, especially if it gets a laugh when he gives an outrageous false answer at first and then pretends the thing he said is completely true before telling the truth. Like, "Yes there are, and you have to win the super secret pie-eating contest before they let you in!"