Write a note! Good for networking with other people in the guestbook after you leave.
Great if you want to find other like minded hackers around the world creating hackerspaces or other types of projects inspired by the Noisebridge principles.
(Nov 2018) - Roland www.linkedin.com/in/roland-lentz from Germany Darmstadt - and the hacker space https://www.lab3.org/en/ at our start-up technology center https://hub31.de/ - Great to meet all the people at Noisebridge . As an manager I learnt from you Noisebridge folks - don't overmanage Hackerspaces . let creativity grow a little bit in anarchy or as I would say it as biologist - let it autopoietically self-organize. - See you may be in Germany -- just contact me.
(Nov 2016) - Gavin from https://twitter.com/yorkhackspace.
(Nov 5th 2016) - Lambert from Helios Makerspace, http://heliosmakerspace.ca/
(Nov 16th '16) Yoni from Berlin https://twitter.com/shushugah