I'm building a Thief/Assasin for my 1st run in Skyrim, so far I've been upgrading my sneaking well, but I notice that sneaking isn't that effective. What I mean is, I find it that enemies see my too easily, even when I'm at a good distance. Someone had told me that hiding in the foliage was one direction to take, but I now see they where bluffing. I just don't fully understand the sneaking mechanics of this game.
Is there any hints that you sneaky people can give me on how to sneak around proper?
PS: I've been leveling up my sneaking and perks also, but I'm currently lvl 40 sneaking.