Watch the Lullaby of the Leaves online guitar lesson by Mimi Fox from Jazz Performance
This is a great technique that I go over in depth in my TrueFire DVD: "Flying Solo". This is an important technique to master not just for solo guitar but for working in duo with vocals and other instrumentalists. The most important thing is to get a good bass "feel" by really slowing the process down and working on your groove. It's fun!