The East Bay Skeptics meet for dinner and discussion on the fourth Sunday of every month. Sometimes there is a topic and someone makes a short presentation about it before an open discussion, and sometimes there is just open discussion of whatever is on people's mind.
Ordering dinner starts at 6pm, discussion starts after eating is finished which is usually a little after 7pm.
Note that there is a email list specifically for this group. To join go to https://groups.google.com/forum/?fromgroups#!forum/eb-skeptics
Even if there are no RSVPs here there are typically between 10 and 20 "regulars" so don't hesitate to come just because you don't see RSVPs here.