there are many more qualified people on here to offer you advice than me, but what i have found is that they sit behind a peice of structure, be it a bank or rock or weed, and wait for bait fish to come to them. so the aim is to cast ahead of this and to bounce back over where you think they may be sitting. i prefer to use plastics that have a bit of tail movement like the wrigglers or the paddle tails. experience will be the best thing for you to improve your catch, keep trying different things. a friend of mine really only trolls bibbed minnows and does very well. good luck.