One of the other posters came up with this, so it's not my idea. But I think it's pretty cool.
If the MeetUp groups started holding block parties, with dancing in the streets, good music and happy goings-on, this could be a great thing for the RP Campaign.
Everybody likes to have fun, and fun of this kind is contagious ! People walking by would have to stop and see what was going on - maybe join the dance.
The poster also had the phrase "I'm switching brands!" - which is good and clever too. Read more here.