Catatonic style...what I'm referring to is running a leech under an indicator. I cast it out, let it sit there, and then give it a quick 2 or 3 inch strip every 30 to 60 sec to attract the fish's attention. I usually run two flies with the leech on top, and then a chironomid or shrimp below tied onto the eye of the leech. I like to fish them just above the weeds, or just off a weed bed.
My normal rig looks like this:
No leader, just ~10' of cheaper fluorocarbon like P-line or vanish, then
Barrel swivel, then
20' of frog hair fluoro. The leech is tied in only about 10'' below the swivel and then the dropper pattern is tied in on the 10' tag. I like how's there's less knots, and the leech tends to sit out perpendicular to the rig this way.
The indicator (lightest..most sensitive one possible) is on the cheaper flouro.