They look at you with the expression of those that have heard everything you said. They listened but, alas, said nothing. One tries to assess whether their mood was positive and thrilled that such illumination has been granted unto man or negative to the point of wondering what was wrong with Heaven if the ground didn't open up and swallow you whole. That assessment is left to whatever facial tics the mute hearer is willing to permit a travel permit across their face. Perhaps if you sneak up on them, and pronounce fell and dark curses on that which they hold sacred.
"Soccer is for euroweenie wussies. You could train horses to play it. It was introduced to The U.S. of A. to give a sport opportunity to the boys who couldn't play other, more real sports. "
"I think the Bush family should be given imperial control over the nation."
"Calvinism is being married to girl for whose "good looks" an argument has to be made."
Maybe that will gain more than a raise eyebrow.