Watch the Gotta Boogie online guitar lesson by Jeff McErlain from Blues Guitar Fakebook: Rhythm Vol. 2
These kind of boogies are very often on one chord, so it's all about groove and dynamics. Well, everything is about groove and dynamics actually, so let's discuss that. A cool way to practice dynamics is to go to the extreme in each direction. Play super loud, then as softly as you can and everywhere in between. By doing this, you develop the sense of the dynamic range of the instrument and control over it.