You can fish floaters several different ways, but you need a weight to get them down to where the fish can see em. I've used rubber core weights, from water gremlin. This way you can adjust the the lenght of the line behind the weight. Sometimes you need to get the floater back five or six feet to get the bait where the fish can see it. I've also used chain bead sinkers or bottom bouncers. With these you need to figure out how long the line behind them needs to be. Experiment with the lenght. Don't just drag it along either. If trolling pull the rod forward once in awhile and let it drop back, this could trigger a fish to bite! If casting use a stop and go retrieve. The fish will tell you what they want, you just have to keep trying different things untill they tell what that is.

Can't ask'em, got to catch'em.