Before

Get one telescope. A modest Dobsonian runs a few hundred dollars but a birdwatcher's spotting scope or steady binoculars on a tripod will show craters just fine. You don't need dark skies for the good stuff. The moon and planets punch through city streetlights.

Learn three objects before your first night: the moon, Saturn, and Jupiter with its four little moons. Rehearse one sentence about each. Dobson's rule is that the view comes with an explanation.

Pick a corner with foot traffic: outside the ice cream shop, the park entrance, the transit stop. Set up a recurring clear-night event in Plurality so neighbors get the signal when the sky cooperates, and use the Needs tab for a step stool for the kids and a second scope when the line gets long. You can also print out your poster in Plurality and let people know to show up.

During

Invite out loud. Point the scope at the moon and say “Come see the moon” to whoever passes. Folks will hesitate to ask, but almost nobody declines.

Talk while they look. What they're seeing, how far it is, why the shadows are sharp tonight. Keep the line moving, but let the kids and folks linger. Some of them are meeting the universe for the first time.

Let the strangers talk to each other. The person walking away from the eyepiece always wants to compare notes with the person walking toward it.

After

Invite folks to record Moments while the scope packs up, and note who lingered longest. Those are your future co-hosts. Ask one of them to bring the step stool next time; small jobs make regulars.

And when a regular asks how telescopes work, do what Dobson did: help them build one. He taught thousands of folks with no training in optics to grind their own mirrors, and the club grew out of his students.

Want to make it official? Start a Group on Plurality and invite folks to follow it. They’ll be able to see all events in the calendar, coordinate to make new telescopes, and even fundraise for one.