A good etiquette is always a good judgment of a person with great personality. This is as good as saying to any type of person doing any sort of job or hobby with great honesty and passion. I bet anyone who has good experiences with people who easily understands and knows how to give way will agree.
As for fly fishing, fishers or anglers would also love a good time while in the water. A good etiquette could come in handy as well. If youre fishing, you certainly wouldnt want to be disturbed which is also what many of the anglers believe which they deserves.
Its important to pay attention to the people around you and yourself, whether you are behaving well.
Before you enter the water or walk at the bank near it and if there is already someone there before you came, be extra polite. Make sure that you dont disturb the water where this person is trying to fish. Never intrude the area where he is someone else is fishing because it is just plain rude if you do. If you want to enter the same area, do ask for permission first. If can be avoided, go find a different spot.
When you are in the water, make sure that you maintain the peace and tranquility of it....