This exercise combines the linear blues approach with the lazy pinky technique. Make sure you are comfortable with both blues scales and lazy pinky methods before working on this exercise.
See if you can learn exactly what I've written, and then write your own right hand part to cover the same left hand part. I recommend that you start slowly and carefully. Make sure you have a distinct awareness of what you are really playing. Sing along - this will slow you down if there is any question as to whether or not you are practicing this correctly!