I was under the (false) impression that "BoF" was a standard global term. My mistake.
BoF refers to a "birds-of-a-feather" session which is typically a side meeting at a conference. It's often a feature at open-source conferences that allows attendees to informally meet in a separate room about a particular topic. One might have a large poster sign-up sheet for BoF organizers to write down a topic with a location and time.
IMHO, BoF's are a great complement to more general Tor presentations at conferences. It allows us to address a particular topic or specific community at an event. As BoFs are usually smaller meetings with audiences actively interested in a particular topic, discussions can be more concrete and operational. BoFs are often just introduced briefly by the organizer.
In our context, BoF ideas might be:
* running a relay|bridge
* organizing a Tor event in your city|university|village
* how to run TB on Android
etc...
If you're going to be attending a conference, consider planning out a BoF on a Tor-related topic which you feel capable of running. It's not necessarily a high-stakes event like a presentation, which means the number of people who can/should organize a BoF doesn't have to be your typical conference presenter.
HTH
g