LOL.... I like just putting up a few tin cans and knocking them off a fence post or a log.
Since you've specified a pocket carry, let us say that you've got the drawing technique for getting it up and out into use all worked out in your head, spent some time at practice (with an unloaded weapon) and are going to have at it.
Set your targets at about 5-6 yards for a series of single and double hand firing. I'd suggest using 2 shot drills, discharged at a quick rate of fire into the target. Your SHTF moment has arrived and you've got a split second to get it right.
Throw in a quick volley session or two where you just stand there and dump a magazine or two into the target.
If you make it through the two boxes of ammunition you will have hopefully acquired some useful practice with the mouse gun.
No links, no pics or vids, nor am I trying to sell you on a DVD. Just keep it simple.