I just took this here Star Trek personality test, which is actually based on the Myers-Briggs test, and which told me:
Myers-Briggs would say that you are an ESFP (Extrovert, Sensor, Feeler, Perceiver). In Star Trek language, you share a basic personality configuration with Kathryn Janeway and Tom Paris.
People like you are warm and social, impulsive, and unpredictable. You have a great zeal for life and are intensely aware of the world around you. You love to play and respond quickly to people who will play with you. You respond well to appeals to common sense and poorly to being judged. Attempts to trap you will make you ready to flee or fight.
You’re highly curious and talkative, but also gentle, sensitive and caring. You close down when people fail to provide you with input and you’re frustrated with silences. You’re most comfortable taking action, particularly in order to help or enjoy the company of others.
Your primary goal in life is freedom to be spontaneous and have fun. Your reward is to enjoy the company of others and know that they enjoy and appreciate you.
Good careers for your type include primary education teacher, starship captain, public relations specialist, tour operator, actor, marine biologist, and starship pilot.
Aside from the shudder at being included in the same category as Janeway, I was deeply amused, since it got me dead to rights. I particularly like You respond well to appeals to common sense and poorly to being judged. *snicker*