Depends on what time of community you want to be a part of - one based on shared geography or one based on a shared interest?
Think the former is really hard if you’re not settled, if you’re young or renting. Latter is probably easier but you’ve got to have interests or passions to follow up on.
Would just day that don’t think you’re not part of a community just because you don’t say hi to your neighbours. We all are in some form of another.
(I also think there’s an inherent small-c conservatism to watch out for in a lot of communities, but that’s probably for another thread)