So what is intonation in American English?
We go up and down staircases.
We start high and end low.
Every time we want to stress a word or an idea, we just start a new staircase.
That sounds simple enough, but when and where do you start a new staircase?
Statement Intonation with Nouns
Intonation or pitch change is primarily used to introduce new information.
This means that when you are making a statement for the first time, you will stress the nouns.
Dogs eat bones.