Watch the Bridge To Born online guitar lesson by Jasper Mortier from 50 Blues Bass Licks You Must Know
A good exercise is to play the whole song 'Born Under A Bad Sign' in different keys. If you play it with other singers (female for instance) be prepared for a totally different key. And it will change the way you play the licks cause you're can't play that open E on the spot you're used to. Other 'lick' based bluessongs: Don't burn down the bridge by Albert King or the killer version by Otis Rush. Or Crossfire by Stevie Ray Vaugha; hugely inspired by Albert King of course.