Can you walk on your tiptoes for 10 seconds?
Yes, I can. / No, I can't.
Can you find something green around you?
Yes, I can. / No, I can't.
Can you make a silly face?
Yes, I can. / No, I can't.
Can you move (fly) like a bird?
Yes, I can. / No, I can't.
Can you touch your nose with your tongue?
Yes, I can. / No, I can't.
Can you jump as high as you can?
Yes, I can. / No, I can't.