According to Wikipedia:
A Johari window is a metaphorical tool intended to help people better understand their interpersonal communication and relationships. It is used primarily in self-help groups and corporate settings as a heuristic device to encourage people to open up to another in self-disclosure.
So, here is my Johari window:
Just pick and choose 5 or 6 words that you think best describe me, and see if what I think is the same as what you think. :p