You must now only be outside your home in accordance with government advice. When outside, you must always be at least six feet (two metres) apart from everyone else except members of your household.
When someone approaches you in the street, acknowledge them in a friendly manner and move aside (ideally to the left), keeping six feet away.
Keep the same distance from everyone in shops; queue six feet apart. You will see these Station to Station guidance posters in West Norwood shop windows; please follow the instructions.
You can read the new government advice here.