For those of you not around Elliot, he does this great "oooueehhh" noise whenever he's excited - kind of that sucking-air-in noise you make when something takes you off guard. You'll need to know that to make this funnier.
A & E: (Sitting on couch. A Disney World commercial comes on.)
A: What is that?
E: Mikey Mouse House. Castle.
A: You're right. We're going to go there, huh?
E: Oooueehhh! Yessssss. On airplane?
A: Yes, on an airplane.
E: Oooueehhh! In a little bit?
A: It's going to be a while.
E: Yeah, a while.
A: Like when its Daddy's birthday.
E: Oooueehhh! Daddy hasa berfday?!
- - - - 5 Minutes Later - - - -
Elliot is standing on the ottoman singing Happy Birthday to Fred.