The county where you register to vote assigns you to a polling place for each election.
Create polling questions and conduct practice polls on a group of your friends about various current political issues (the economy, the war on terror, the status of health care, the price of gasoline, etc.). Write up your findings.
Research media coverage of past presidential elections to see how much reliance was placed on polling data and what kinds of polling questions were asked. Cover different election years. Use archives from news sources as well as archived polling questions from sources like Gallup.