So you want to be a GM? Why? Most of people wants to be GMs because they want to be higher than others or to have higher influence over the game. This is quite natural human behavior and it is nothing wrong in it if it has any basis. And those basis are usually:
1. Being helpful and useful. Writing useful things on forums and Wiki, helping other to enjoy the game.
2. Other contributions to the project (besides full time developers, since they are not chosen for GMs).
3. Bringing a positive spirit to the game, having positive influence in the community.
4. Yet to not be a member of any clique or bandwagon. Persons who has large amount of protegees cannot be GMs, since they lack objectivity.
5. Speak English, "u" and "r" are not words. If you speak like a retard you are a retard, retards cannot be GMs.
6. Not asking to be a GM, not showing off every good thing you did - it means you are a desperate and desperates cannot be GMs.
If you comply to above you surely will be noticed.
I hope it is clear.
Regards.