There's so much to mention, but if I could stress a few things
Stay away from anything that could potentially turn people off immediately!! (hemp, abortion, gun control). Theres a ton of people who disagree with Ron in these areas (ie, they support a woman's right to choose, gun control because of events like VA Tech, Columbine) however they still support him because of his overall message, on "bigger issues."
Obviously, the bigger issues are he is the only republican against the war in Iraq, his reputation as "taxpayers best friend", and his protecting our boarders, not Iraq's. It might be nice to mention that as the only medical doctor in the running, Dr. Paul knows about the problems with our health care system more than anyone (no need to mention his position here, just mentioning this should spark interest.)