Laughter is like composing Haiku or taking pictures. When you think of a scene in front of you in order to write a poem or think about how to compose a shot, you are deeply engaged with where you are at. You are seeing things beyond the surface, finding relationships, comparing, contrasting, creating meaning. Laughter is like that between people.
I reject the "political compass" on the grounds that it comes from a very right-libertarian view of the world and is fairly incompatible with my view of the world. (I actually came to this from a libertarian explaining the weakness of the Nolan chart.)