another option is to play all of the notes in between the 2 notes you would normaly play for a pentatonic scale, so that would give you 4 on the low E string (Frets 5, 6, 7, 8), 3 on the A, D, G (Frets 5, 6, 7) strings and finally 4 on the B and E strings (Frets 5, 6, 7, 8). It sounds a little more chromatic, but is an excellent excercise to recognize with your ears the difference a half step or whole can make. then through trial and error discover those unique sounds on your own, and what personifies your style the best.

J