I'm thinking of people smoking outside of stores and those who use bike racks 10 feet from where the smokers are puffing away.
They routinely come in contact and have the opportunity to talk.
They might not be natural allies on some issues. But perhaps there's common ground to be found, once the dialog begins.
Of course, this sort of assumes that all cyclists have the same attitudes about matters of public policy or that smokers all think alike. And that's not the case.
Still, I have an idea where the two groups could begin.
"Those things will kill you."
"OK, well maybe I'll start wearing a helmet while I smoke."