The steps to play the Chinese characters 81 with balloons are as follows.
1. Cut out the eight-character and one-character characters on the printing template or printing plate respectively to ensure that the shapes are clear.
2. Place the air-filled balloon on cardboard or newspaper to stabilize the balloon and prevent it from rolling.
3. Gently press the sponge on the eight-character and one-character printing templates to absorb the paint or ink.
4. Carefully remove the balloon from the template to ensure the printing effect is complete.
5. Wait for the paint or ink to dry on the balloon.