Watch the Work For It online guitar lesson by Jeff McErlain from 50 Eclectic Blues Licks You MUST Know
This snappy lick I stole from blues guitarist Albert Cummings. I liked how he bounces off of his open strings over a B chord vamp.
You may ask "Hey Jeff, how come there is an open G string ringing out, G isn't in the key of B?" My answer would be yes, you are correct, G is out of the key but it sure sounds cool!