This is the basic bluesy riff from pluckin - one of  
the better songs on the album.  
 
 
e--3---6--3------3-6-5-4---3 
G----3--6---3--6---------3-- 
B--------------------------- 
D--------------------------- 
A--------------------------- 
E--------------------------- 
 
 
Ocassionally pluck the strings to give something extra.