It's a very simple job, but they are very important. Greeters are your first point of contact as a Villager. They are responsible for orienting you in the Clan . While this seems very simple, and might bring to mind one's first day at college or holiday camp, it's also very important to help you be at your ease and to allow you to always have someone friendly to whom you can go for help and advice. The Greeter also tends to know the people in the Clan and can point you at like-minded people if you need help finding them.
Greeters are Volunteers who like to help people.
Their numbers are limited, but when new Clans form, they are there to help get things started.