Join the event and let people know what to expect. If it is a real time event let people know where you are and share this on your FB accounts. On 12th December upload your work and then share the page on your personal accounts.
Create something and share it on the day or create it beforehand and share it on the day. Display art work on the streets, cafes, buses and trains or in your kitchen or shed.
I am especially interested in inviting disabled people to be part of the project, so please help get the word out if you know people who may be interested.
I hope to see the Meadows people involved in the project.