That is a good example, but to play it authentically you need to listen to some of the greats, both old and new! Check out the Del McCoury band and Allison Krauss & Union Station for new, and anything by Bill Monroe, or anyone from that era.
Also, you can check out this site for some guitar instruction, this will give you some basic songs to learn that are popular at the jams....
WholeNote: Bluegrass Guitar Lessons
This will help ya get up to speed on some of the standards. I hope this helps!