Watch the Man, That Hurts online guitar lesson by Jeff McErlain from Soloing the Changes

The pumped-up changes are D-D7-G-Gm-D-A-G-D. As always, write out all of these notes onto a piece of paper and have that in front of you when practicing. This really gives us a visual representation of the notes we want to start to concentrate on. The one chord that should jump out at you most quickly is Gm, as all the other chords are common changes in a blues. Play through these chord changes with the track and see if you can hear how they sound before you try to solo over them. Look at the inner workings of how these chords change on the fingerboard. Note which notes stay the same and which notes move with the smallest amount distance possible. We'll notice quite often that many notes will remain the same, we call these common tones. The other notes usually move in either a half step or a whole step. Seek out these notes often as the melody is contained in them.