How to Hug and Reduce the Risk of Spreading COVID-19

During this time of strife, we’ve seen moving images of police showing solidarity with demonstrators by offering them a hug. But with the coronavirus still going around, is this well-meaning gesture the right thing to do? After so many weeks of social isolation people can’t wait to hug others again and reestablish human contact. So what is the least risky way to hug someone these days?