Kind of liked this little riff, its a blues lick using a Major 6th and Minor 3rd with a bend. Check it out

Stevie ray vaughn licks on
video.. have a blast learning
these this weekend

Here is a cool lesson on playing the blues shuffle

Though your going to have to watch this carefully to figure out what he is doing you can get a rough idea of where he is on the fret and the slide work you will need to do plus picking