HOW TO UTILIZE:
Today's lick is based primarily on the E major pentatonic scale (see tab of the scale below). The root of the scale is on the sixth string, played by your pinky finger. If you wanted to play a D major pentatonic scale, you'd start the scale with your pinky finger on the note "D", at the tenth fret of the sixth string.
You can apply the principle of today's riff to the rest of the scale, to create different licks. The key is to experiment, and come up with new licks that are appealling to you. Playing these hammer-on ideas using the pentatonic major gives you a very Hendrix-y sound (think "The Wind Cries Mary"). Try moving the scale around to suit different chords - eg. try playing G major pentatonic ideas when a song goes to a G major chord, and if the song goes to C major, try switching to C major pentatonic ideas.