Let's see. Maybe we call out one in Barcelona in winter. Depends on a job from January.
But in general; Once a month would be great to do meetings between other Hivers. The Austrians do a good job, like role models, in sense of constancy. If they still doing the monthly MeetUp. Haven't traced them for a bit of time.
But that gives great chances of brainstorms concerning Hive matters, besides chats, chips and shared adventures.