PostgreSQL Europe is made up of it's member and the greater European community. We encourage everybody, both our members and other PostgreSQL interested parties around Europe, to participate in all our activities!
If you want to arrange a local activity, or otherwise promote PostgreSQL locally there are many things we can do to help. For example, we can help provide goodies, help with event management software, and many more things. Don't hesitate to reach out to us if you have any questions or ideas!
All our coordination is normally done through the mailinglists, where we encourage open discussions!