Why do you sleep?
Because you feel tired. To get some rest.
Why do you tie your shoes?
So you don't trip.
Why do you eat food?
Because you are hungry.
Why do you use a flashlight?
To help you see in the dark.
Why do you wash your hands?
To clean them. Because they are dirty.
Why do you wear a jacket?
To keep warm. Because you're cold.
Why do you wear sunglasses?
So you can protect your eyes from the bright sunlight.
Why do you laugh?
Because something is funny!
Why do you drink?
Because you are thirsty.
Why do we say "please" and "thank you"?
Because it is polite.