I’m not completely 100% sure about this but I think…  I think that goat is trying to say something with what’s it saying, expressing, or doing.

↓ Transcript
The Petting Zoo

Tammy: Heehee, always knew I was a princess!
Cruz: So... you can sing or talk to animals?

Tammy: Er, let's see...

Tammy: Let it goooaat! Let it gooaaat! Can't hold it back anymooore!