besides all the great licks Ive heard from the greats and may I mention the great pickin I believe Bruce Langhorne did on Dont think twice ,heres a lick a late friend of mine taught me years ago, kinda rocka billy but fun--- play likea D7th at third and fourth fret which is actually an E 7th. heres the hard part-- hit the third string with your right hand thumb or flat pick--then with pinky of left hand on second string at fifth fret, pick up the second and first string together--then pick the third strig again and after lifting the pinky of the fret pick the second and first string again.///now pick the second and first string with your left hand pinky on the second string at fifth fret pulling it off as soon as you sound both string 1 and 2.///then resolve back to the third string and play that alone.////as u see you keep going back to the third string and playing that alone and the first and second you pull together----////Improvise, good luck ,hope someone get it-----Rastaaaa