Bluegrass jamming is one of the most fun aspects of playing the banjo. You can join in a jam no matter what skill level you're at as long as you know a few basic chords and understand a few unwritten rules to jamming. Understanding these unwritten rules will allow you to relax and feel at home at any jam.
Watch this video and learn what to do and what not to do. You don't want to be a jambuster!
Let us know if this lesson helps you and if you have any questions or things you would like demonstrated in the comments below. Good luck!