I learned mostly from watching others throw. Then I joined the local D.G. club & started going to a lot of doubles tourny's. These are easier for the beginner because you have a partner to share the load. It allows you to relax a little bit. You'll see a lot of other peoples styles in a short period of time. You will talk strategy with your doubles partner & learn the little ins & outs of the game. I learned proper etiquette i.e. How to mark my lie. Where I should stand when I was waiting on others in my group.
I learned when it was my turn to throw. Pretty much everything that I wanted to know that I could not get playing casual rounds.
From time to time you'll get paired up with a really good player. This is when you want to watch carefully & ask a few questions to learn how the game is supposed to be played!