David seeks to have the world explained to him by asking "What do?" For example:
"What do those two men?"
"What do Spiderman?"
"What do watermelon?"
"What do thunder?"
"What do pee-pee?"
Usually one "what do" question leads to another:
"What do those two men?"
They are fixing the street light.
"What do street light?"
The street light gives us light on the road at night.
"What do night?"
Night is when it's dark and time for bed.
"What do bed?"
Bed is where we sleep.
"What do sleep?"
etc.
Often the dialogue becomes cyclical. A frequent conversation we have goes something like this:
We're going to the park.
"What do park?"
The park is where we go to play outside and have fun.
"What do fun?"
Having fun makes us happy.
"What do happy?"
Happy is when we have a good feeling inside.
"What do good feeling inside?"
A good feeling inside makes us happy.
"What do happy?"
etc.
The questions are always simple, and the answers should be too, but I often struggle for a response:
"What do bombs?"
"What do Heavenly Father?"
"What do love?"
What does love do? Did you ever think about that?
Good thing we have three-year-olds in the world, to help us stop and see the world.