well, I am a gemini, and am with PVD on this one, the description of my sign fits me perfectly:
You live in your head a great deal - reading, observing, thinking, spinning ideas around - and you need mental stimulation every bit as much as you need food and drink. In fact, if you had to choose between a good book or movie and a good lunch, you would very likely choose the former. You have a creative mind and often live by your wits.
You are also a very social creature, with a strong need to communicate and to interact with people. You enjoy using and playing with words and have a real flair for getting your ideas across in a clever, interesting, articulate manner. Writing or speaking are areas you have talent for.
You also have a rather light and mischievous sense of humor, and often do not take anything too seriously. Though you crave emotional involvement, it is hard for you to achieve it, for you are frequently unwilling to commit yourself to anything, to take responsibility, or to limit your personal freedom and mobility.
Your happiness lies in using your creativity and your language skills to communicate something meaningful, to teach, inspire, or bring people together. You have an unbiased mind and can usually offer a fresh, clear, uncluttered perspective. Your faults are your lack of constancy and persistence, and your tendency to overlook or ignore deep emotional issues and other people's feelings.
and to answer Brad, well, no I have never read a description of my sign that doesn't fit me fairly well, but have read descriptions of others, and can say without a doubt they aren't *me*