Joke Collection Website - Talk about mood - What should I say if I am on the white wall?

What should I say if I am on the white wall?

Reply that you already know, and then ask the other person if he needs help. Others said that when I reply to the whitewashed wall, I should reply to the other party first. You already know what the other person is doing, and then ask if the other person needs help. After all, the other party will be busy in the process of painting the wall. For example, um, I see. Are you busy now? Do you need my help?