The road where I live has a group Whatsapp and given the clear sky the night before last I put some info on the group Whatsapp about what was in the sky (nice Moon, Jupiter, Saturn conjunction and bright Mars) and got a terrific response with around 15 households responding and getting out in their gardens and having a look ~ went down especially well with those with children!
An opportunity and long shot which worked well!
Best to all
Hugh
Great idea Hugh.
Carole