The biggest liberal in the group seemed very surprised that he was stuck with nothing to say, he simply said "well, at least you have thought this through. most libertarians I talk to just want to smoke weed and haven't thought about issues past that"
When libertarians shut up about 'weed' success is not far away.
It is the number one killer of a good change to talk about issues . Talk about property rights, taxes, unalienable rights and all the other subjects but never ever mention weed. It is the number one showstopper and everything said after that is ignored.
If you want to use a sample, talk about raw milk, that does not have a stigma. Once you mention weed, you are labeled a 'druggie' and all respect is lost, even if everything you say is absolutely true.