One start is to move your chord positions up three frets. This gives you the minotr third scale which is one blues mainstay. Also move back two frets and use the BC pedals. this gives you the Dorian mode another blues mainstay.
In A one nice lick is to use the C pedal off and on as follows. I'm just showing the top 6 7 sstrings as these have many a lick
Fret 1 2 3 3 3
---------------------------X---------
2-----------------x------------------
3------------------------------------
4-------- --X~C---------x~c------------------
5------------------------------------
6---------------------------------------
7-----------------------------------------
repeat. Leave both string ring withour blocking
Fret 3 3 3
------------------------------------
2-----------------------------------
3------------------------------------
4-----------X~C~X----------------------
5------X~b------------------------------
6--------------------------------------
7------------------X-----------------------