I see so many people on the news touching their masks or removing it and putting it back on without watching their hands. WHO has a good video of how to use a mask correctly that the entire world should watch.
The funniest one I've seen so far is a man I saw in JC Penneys last week. He was wearing one of these face shields:
...which looks kind of silly anyway. Only he was wearing it UPSIDE DOWN! (no image available) Strap around his chin, plastic sticking up like the windshield on a cop's motorcycle. It's amazing how people will go out of their way to pay lip service to the rules without actually following the rules.