I know that we were ALL told, as children, to cover our mouths when we coughed.....
But, PLEASE, kindly remember not to use the same hand that you just coughed into to reach for objects like door handles or (pay attention!) to shake hands with someone!!
Swear to god(dess), I've made it a point to notice at church. Every single person that coughs into their hand then extends that hand to all around them, during the Peace.
Every single one.
Bring a tissue with you. Cough into your shoulder. Sit on your right hand ( extra useful if your right-handed). Carry a tiny bottle of hand sanitizer. Everywhere.