I have never really just "crappie fished" before so I am pretty ignorant about how to catch them. I know they like jigs, right? Never been much of a jig user but enlighten me. I have caught them 'by mistake' with roostertails before.

I will be using a spinning reel and/ or a fly rod and can do this on the shore or off bass boat on a lake or off a long wooden walkway across a large pond. The latter is where I will most likely crappie fish and there seems to be tons of them in there. The water is pretty shallow(1-3 ft) and very stained.
What fly patterns work well?

Thanks for the help.