bluesey type thingy thing...
riff a

 e |-------------------------------------| 
 B |---------------8---------------------|
 G |---------------7---------------------|
 D |--------5------6---------------------|
 A |----5-----7----7---------------------|
 E |-/7---7------0-----------------------|

riff b

 e |---------------8---------------------| 
 B |---------------7---------------------|
 G |--------5------6---------------------|
 D |----5-----7----7---------------------|
 A |-/7---7------0-----------------------|
 E |-------------------------------------|

riff c

 e |---0-0-0----0-0-0--0---------------------|
 B |---5-5-5----4-4-4--3---------------------|
 G |---4-4-4----3-3-3--2---------------------|
 D |---5-5-5----2-2-2--1---------------------|
 A |-0----------3-3-3--2---------------------|
 E |----------0------------------------------|

riff d

 e |------------------------------------|
 B |-----------8------------------------|
 G |-------7-9---9-7--------------------|
 D |---6-9-----------9-6----------------|
 A |-7-------------------7--------------|
 E |------------------------------------|

here is a suggestion on how to go about using these riffs.
play: riff a (x2)
      riff b (x2)
      riff a (x1)
      riff c (x1)
      Riff a (x2)
      riff d (x2)
i hope you enjoyed this. please rate and comment.