What is this?
It's an ankle.
What is this?
It's an arm.
What is this?
It's a back.
What is this?
It's a chest.
What is this?
It's an ear.
What are these?
They're elbows.
What is this?
It's an eye.
What are they?
They're fingers.
What is this?
It's a foot.
What are these?
They're teeth.
What's this?
It's a knee.
What are they?
They're toes.
What are they? / What is this?
They're lips. / It's a mouth.
What is this?
It's a tongue.
What are they?
They're legs.
What's this?
It's a nose.
