I found this on my friend Carroll's myspace blog. It was fun so I decided to do it myself. I've done this before for my Interpersonal Communication class, but I was analyzing someone else.
For those who are unfamiliar with this the Johari Window is a window divided into four sections about yourself:
Arena (what everyone knows about you, including you),
Blindspot (what other people know about you but you don't know about yourself)
Facade (the things that you know about yourself but others don't know) and the
Unknown (the things that you don't know about yourself and know one else knows those things about you either because circumstances have not allowed you to discover these things).
Here is my Interactive Johari Window
There are instructions that will tell you what to do if you want try this out. Then you can make your own and can come and fill it out for you.