The main reason I am showing you this, is for you to tell me if you felt it too. That feel. It could be different for each of us, but I am pretty sure you'd feel happy.
So in order for him to spread happiness, he is not only using digital methods. He prints out beautiful stickers of his art and gives them to people for free.
What could give you more happiness than an act of selflessness?
He is not asking for anything. If only perhaps a smile in your face. What he wants is to spread the happy cloud around the world.
As long as we have people who want to put a smile on your face I am pretty sure we are going to be fine in this world.
Let me just tell you one more thing. He is not only fun. He is getting a message through. You will have to find it.