Interesting company I found on Solo Traveler.
According to the website:
The Global Greeter Network is an informal association of Greeter programs around the world.
Greeters are volunteers that love their city so much they volunteer to show their city to visitors. Not as a guide, but more like a newly met friend! Greeters will show special places that mean something in their lives. They would also show things visitors specifically ask for such as parks, shopping, architecture or a less wellknown neighborhood.Greeters are no professional guides, that is why Greeters (for example) do not enter a museum with their guest(s), that is up to the professionals.