Why is it when trout are rising they cannot see an angler in front of them?

Do I or can I use an emerger dry fly on a freestone river?

I want to buy a new nymph rod but I’m having trouble choosing the right rod. It’s very confusing. Why are there so many types of nymph rods?

I will be nymphing the Boise River through town. What nymphs should I be using?

I was on the Owyhee River the other day and I had a million fish rising right in front of me.  I took out my handy net seine and seined the water for about 5 minutes. When I raised my net I saw tons of tiny, I mean tiny, little black worms.  What the heck are them bugs?

I see a lot of nymph flies that are tied in different colors. A red Copper John does not look like any nymph I’ve ever seen.  Why are there so many nymphs out there brightly colored?

I was on the Owyhee River during a Blue Winged Olive Mayfly hatch (Baetis). I was able to catch a few duns and look at them closely. They had a very dark body. All my patterns have the traditional olive to light olive bodies and do not seem to work. What’s up with that and where can I get the right color fly.

What’s the best knot to use to tie on my fly. The clinch knot is what I’m using now and it’s just not working for me.

I was on the Boise River casting a size 20 Blue Winged Olive (Mayfly) over rising trout. While I only caught 1 trout over the course of the hatch, another fly fisher was banging them one after the other.  What was I doing wrong? 

In the Winter, my hand freeze up . I’ve tried various types of gloves but none keep them warm.  Any suggestions?