Now you're a goose. No, you mustn't be a goose. Be a monkey. See?
6 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.
You can hear this line at 00:40:52 in the Blu-ray version of the movie.
Quote context
[...]
- Put your tongue up in front of the teeth.
- That's right. Talk to the other monkeys.
- Oh. We're just having our first lesson in pretending. Doing quite well at it too.
- That's right. Go on now. Call the other monkeys. That's right.
- Now you're a goose. No, you mustn't be a goose. Be a monkey. See?
- That's right. Dr. Pierce doesn't want me to make that long trip every day.
- Well, I was just thinking. I'm all alone in my apartment - twin beds and plenty of room.
- Um, if you'd like to move in with me, I'd be only too happy to have you.
[...]