After the presentation, he thanked me politely for my time, and followed up with me shortly after on Facebook and LinkedIn. His follow up was impeccable, and based on the professional presentation he offered, I would eagerly refer him to anyone I know for a job.
Take a page out of this gentleman's book. Smile. Laugh. Network with people as though they are people and not just a means to a job. They will remember it and respect you for it!