Pete now hoots "For three!" when he hits one from downtown. He also calls out "Yay, Papa!" or "Almost, Papa" (or "Yay, Pete! and "Almost, Pete!") as appropriate. I think "Almost!" is one of my favorite Pete expressions: he doesn't get down about a ball not going into the basket, he just celebrates its closeness to the basket.
He's also starting to string words together, often when he wants something. He was doing it a lot today: "Mama? Ball? Shoot?" when he wanted me to play, too. "Pete? Out? Snow?"