If you've got five minutes to spare, try the World's Smallest Political Quiz, made by the well known Libertarian organization, the Advocates for Self-Government. The quiz asks 10 multiple choice questions and gives you a graphical representation of how they rate your political persuasion, on a scale of Conservative, Statist, Liberal and Libertarian. Needless to say, as with all such quizzes, especially political ones, the results should be taken with a salt mine. Nonetheless, it's a good way to get people interested in political issues and get the conversations rolling.
Here's my result: