I have been given many widely varying descriptions, and sometimes they are far more inflated than the reality. However if given about ten minutes, you will find I am not as intimidating as I seem at first, and will likely do something goofy to put you at ease.
As a kitten I attended finishing school (I assure you, I am fully "finished" to my personal capability), which gave me confidence, poise and the invaluable lesson of the proper fork for each course. So while I can traipse down stairs with a book balanced on my head, I still slouch, curse, and say what is on my mind. I have most often been admonished for an elegant arrogance upon first meeting, but I assure you, I'm nervous too :)