You can either try to be funny on a day like this, or very serious, it’s hard to be straight down the middle on the subject. In order not to offend anyone am going to try and be brief. I think to some degree, we all have several personalities we express daily. The difference in being diagnosed with multiple personalities and not is whether you are able to control the voices in your head. Perhaps you should see a doctor if you find yourself waking up in the morning and arguing with yourself.
How to celebrate – How many personalities do you believe you have? Can you see multiple personalities in others around you? Throw a party for yourselves!