I've never been much on covering my face. Mostly because I almost instantly turn into a "snot nosed brat" when I cover my nose...

Don't know why. I wear the disposable paper filter masks when doing some tasks and it only takes a few minutes for the nose to start running!
Of course I also much prefer shorts and t-shirts to long-sleeve long-legged clothes too, especially in summer...
I do try to wear SPF-50 sunscreen on longer trips, though I'm a bit lax about it when I'm only out for a couple hours. I do that too often to get away with it though, need to use it every time.