You will need: five crayons, a bag. How to play:
Put five crayons of different colors in a small bag.
Turn around so you can't see your friend. Tell your friend to take out a crayon. Tell him or her to put the crayon in your hand behind your back.
Turn back to your friend. Keep your hands behind your back. Rub(擦) the crayon with your thumbnail(拇指甲). Part of the crayon will stick to your nail.
Put the crayon back to the bag. Tell your friend that you're going to guess what color the crayon is. Put your hand in front of your face so you can see the color on your nail. Tell your friend the color of the crayon.
A. B. C. D.