One of the most effective ways of soloing in Blues is to imagine that the guitar takes the place of the vocalist, and to use a vocal style of phrasing. Because singers have to fit their melodies to lyrics and breathe between phrases they can’t keep up a constant stream of notes like an instrumentalist.
This means that choosing the most effective notes and creating the right mood with the melody and phrasing is the most important consideration. Since most guitarists tend to overplay, studying vocal phrasing can lead to a more authentic Blues sound and more emotion and communication in your playing. Here is a solo based on vocal style phrasing.