(#2 to #5)
"You aren't big enough to eat yet - just to drink milk. But soon you'll be able to eat squished food, and then you'll grow teeth and get to try chicken fingers! They are so tasty!"
(a few moments later)
"Are you wondering how I'm talking? That red thing that you breathe though is called a mouth, and after you learn to use it, you'll be able to talk too."