I think the best way to improve humor is by getting into a state of flow.True happiness and humor comes out when we are spontaneous. Now what is a state of flow? It's that strong state that we all have experienced at some time or another. We did it once, we can do that again. We are not just conscious of it.You can get in and out of your flow state on demand. You have to train yourself to be in a strong, beautiful state. Decide consciously to be in a beautiful state.