Watch the Stevie's Thing online guitar lesson by Jeff McErlain from 50 Blues Guitar Licks You MUST Know
I first heard this lick was from SRV on “May I Have A Talk With You?” from The Sky is Crying CD. It is still a favorite of mine and a Texas blues staple, it works great just by itself or work it into a lick you already know. I highly recommend that you experiment with the phrasing, play it fast, slow, medium, break up the phrase, displace some notes. Also experiment with the lick as a repeated theme throughout the song, just like Stevie! A cool hat doesn't hurt either.