Master all the chords in E and A keys including the second, third, and that funky run from 1==>3==>6==>2==>5==>1. Teach your little finger to stretch to the fourth fret on the Low E and A strings in an "E" formation and start by learning a basic boogy-woogy run, as in "Good Morning Blues" or "Roll On Buddy" or "Booshwah Town". That's give you some basics -- teach your thumb to do it in your sleep.

A