Roger on'nat, DF!
There are mixed opinions, but my experiences make me know that hiding works. Fish see through water better than we do, and they can see quite well passed the water's end. Natural-colored clothes are better than dark and bright colors that scream "here I am!", but camo messes with fishes' eyes like it messes with everything else.
Be quiet, appeal to their lateral line.
Hide, appeal to their eyes.
When You're fishing, You're hunting a wild, living creature that has a brain. Get 'em!
EDIT: past/passed...ears/lateral line