Emphasize the importance of keeping the same 'circle' or 'bubble' of friends, so unintentional exposure is decreased.
Show them how to clean items like faucets and handles after use.
Remind them to clean their cell phones upon returning home (the cases and screens will be contaminated). The same goes for items like airpods and laptop keyboards.
Emphasize the importance of never sharing water-bottles, utensils, and so forth.
And most importantly, remind them that face masks must be worn in any crowded public places, including all stores, subways, schools, athletic facilities, and more.
