I stay inside a lot, I am lucky in one respect: I don't miss other people's company. Some net/telephone messages, it is enough.
But I must go for a walk, and I must buy food. When I walk, I don't wear a mask, because it would be impossible for me: the decades of smoking gave me a lung disease. But I avoid other people as well as I can, do not let them to come near, and don't even go to any narrow streets.
Before I go to the grocery shop I put the mask on. I carry it in a clean plastic bag with me.