One thing to remember, is that early on you will be chasing hatchery fish. And in general hatchery fish dont seem to respond to flys as well as wild fish do. Also look for places away from the drift guys (at least in winter). Or try to get to the "good" spots first. And get used to looking for areas that give the fish a secure feeling or hiding place, and where you can get your fly down and slow. good luck.