According to Chip Massey, former FBI hostage negotiator and now partner of Convincing Co.
The first thing to get inside your mind: Facts will not work. I’ve seen very well-meaning people come “armed” (which is an interesting word, right?) with logic and science to go against red-hat wearers. That will never carry the day. Second: Don’t think that you’ll resolve anything, or that you’ll even discuss vaccines necessarily, over that meal.