Let's beat Corona: List of social activities per risk level

All of us have had enough of the Corona. Many of us are mostly staying home allowing ourselves only selected activities/contact with the outside. But which of these activites/contacts are riskier than the other?

A LocalHooder, @Velda Kwan, came across a list of social activities that we in Hong Kong usually do, according to their risk level which she spontaneously translated that into English. It's a useful and handy reference in light of the present new Corona wave in HK. Take a read...