Having done this now for more than a few years, I do have some technical tips to pass on:
1.Matching the hatch.
a.Most of what trout eat are thingies about half an inch long and brownish gray. Carry several flies that match this description. Given the vast array of circumstances you may have to confront, it is best if some of them float and some of them don?t.
2.Maintaining the correct image.
a.When the ?genuine expert? says something utterly incomprehensible, like ?they?re feeding on the ephemeral stage of discustus fustica?, furrow your brow, squint slightly, and nod slowly. Smoking a pipe while doing this is a plus.
b.Tweed always projects a good image, but only an old jacket well used. Taking a new jacket to the vacant lot down the block and kicking it around for a few hours will give you the same effect.
c.Aloha shirts and NASCAR jackets are a definite no-no [unless your name is Jack].
3.Rigging up.
a.Tippet size is very important. It should be small enough not to look like a yard of log chain on the water, but thick enough to allow you to extricate your fly from the bushes behind you. Obviously this will vary depending on the fishing circumstances?. Some venues have more robust bushes.
4.Casting
a.The major rule, and this is very important, is always grasp the blunt end of the rod.
I hope this helps.
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Eschew Sesquipedalian Obfuscation