On the social front, he is socializing, but he's somewhat culturally out of touch with his peers which means he sometimes can't join in very well.
One of my favorite Calvin and Hobbes is one in which Calvin tells his dad they have to get cable and his dad says no.
Calvin: "If we don't all watch the same TV, what will keep our culture homogenous? We can't rely on monolithic networks to provide uniform national blandness anymore!"
Dad: "There's still McDonald's and Wal-Mart."
Calvin: "But they don't come into our homes!"