Fly fishermen will take to the same waters favored by bait fishermen in search of good trout action. The trout will hug the muddy bottoms and this is where your fly needs to be. A Clouser minnow will be the best bet, with white being the preferred color. If you don't have a sinking line, pick up a sinking tip or let your Clouser sink before you begin stripping line. As trout populations become concentrated, small fish mix in with the keepers and provide plenty of action.
Afternoons are often best due to warming water and incoming tides.
And, if you're a beginner, be sure to pay attention to the old-timers. They know that the difference between a successful day and a frustrating one may be a scarcely detectable change in presentation.