Me, in the checkout lane, to the woman ahead of me who's wearing a mask: "Nice to see someone else wearing a mask!"
Her: "I've got a cold, so..."
Me: "Well thank you for wearing a mask when you're sick!" (wondering, Did you bother testing for covid, or just assume?)
Her, sounding annoyed at herself: "I wish I'd been wearing it last week!"
In all my circles, somebody has some respiratory illness. It's definitely covid for one neighbor. I thanked them for testing. Good luck out there, y'all.