Full lock down won't last for months, but places where you can't social distance such as restaurants, cafes, leisure, schools, etc aren't going to re-open for months. There'll be slight relaxations, such as allowing more shops to open, but with the same kind of social distancing precautions we see at supermarkets, i.e. queues to get in, numbers limited etc. Anywhere you can't practice social distancing won't be re-opening any time soon at all and that includes workplaces, which will have to change procedures etc to ensure safety of staff, customers, suppliers, etc.
In those few days between announcements, before pubs, cafes etc were ordered to close, many tried to adopt social distancing measures by reducing the number of tables etc - unfortunately, things moved too fast to see how viable that was. So that's probably the first stage of getting back to socialising, but even then, it's months away.