You say:
open your mouth
What's your hobby?
It's cooking / I like cooking
What's this?
This is my hair
What's this?
It's an ear
What's your hobby?
It's painting / I like painting
What's your hobby?
It's dancing / I like dancing
What's this?
It's an eye
What's this?
It's a mouth
What's your hobby?
It's drawing / I like drawing
Is this our ____ ?
school
What's your hobby?
It's swimming / I like swimming
What's that?
It's a nose
What's this?
It's a hand
Is this our _____?
playground
What's your hobby?
It's running / I like running
What's your hobby?
It's walking / I like walking
You say:
Touch your ears
What's this?
It's a body
Is this our ____?
library
Is this our _____ ?
classroom
What's that?
It's a face
What's your hobby?
It's singing / I like singing
How old are you?
I'm nine years old
How old are you?
I'm eight years old