A neighborhood is partly made from the people who notice when ordinary patterns stop.

Community is often described in terms of events, and it is really made of attention. Somebody notices that the curtains have not opened, that a car has not moved, that a familiar walk has not happened this week. That noticing is not organised, cannot be scheduled, and is what makes the difference on the few occasions it matters.

Learn one or two of the ordinary rhythms around you well enough to see when they stop. Knocking on a door to ask a slightly foolish question is a small risk against something worth catching early.