What is something your people can’t do solo? Or that would be better in a group? The more compelling the shared activity, the more likely you are to spark a community. Is the activity purposeful? Tie the activity back to your community’s purpose. And communicate that purpose explicitly, as Gavin Pretor-Pinney did when he formed the Cloud

Pinpoint people you share a purpose with, do something together, and get them talking.

Nearly every challenge of building a community can be met by asking yourself, “How do I achieve this by working with my people, not doing it for them?”