Watch the Sixties Rocker online guitar lesson by Jasper Mortier from 50 Blues Bass Licks You Must Know
The basic pattern of this 60's Rocker is double 8th notes: I-I III-III V-V VI-VI (or VI-V) over the bluesform. Note the typical double hit of the snare on the backbeat. To play it really sixties-like, I think it should be almost over relaxed. With rocker grooves like this there's a tendency to speed up, so this is a really good excersise to keep your head cool.