I think a double reed duck call is the best to start out with. They are easier to use, forgive more mistakes, and can take a lot of spit that flows through the call especially with beginners.
I do quite a bit of layout blind hunting and the best camo pattern I have found for that is Mossy Oak® Duck Blind™.
A: This is a great question that can really only be answered through practice and experimenting with your gun.