Watch the Position 4 Solo online guitar lesson by Jason Loughlin from Blues Connections: Major
The first motif we see pop up a few times is descending from the b7 with a bend release. The second is using double picking notes as part of a scale run. The last is a third leading into the b7. This only happens once and is immediately repeated an octave higher. Jumping the octave either up or down like this creates a call and response.