FreeNix
We use a community library ICT lab to demonstrate FOSS, help with fresh installs, do presentations on FOSS topics, etc.
SFD acts as our annual special event for promoting monthly workshops, on the first Wednesday night, at the same venue.
Our SFD16 event detail is here: http://www.infohelp.co.nz/sfd16.html
Team Christchurch SFD https://www.facebook.com/TeamChristchurchSFD
Describe what you do, confirm date and time and specify the address so people know where to go.