We all have our alter ego although some of us do not admit that, while the others do not realize that
It may be in our behaviour (a serious manager fighting with enemy forces on-line sited all night in front of a screen) or in our appearance (a modest clerk becomes a beauty when going for a party).
Whatever the reason, we want it or not, the world is full of alter egos, like two sides of one face at the first look the same but in fact not the same.
To show the difference you can copy the halves and create two new images of your face (lefts and rights).
suggested a new community project Altered--Ego and it is now here:
Read their journal to find out how to prepare your images and TRY as it is fun to see your new face
In my opinion, the real sense of humor do manifest in how we laugh at ourselves.