Here's a few steps on how to be a good player on a server.

1. Be helpful. If someone needs help building something help them.
2. Don't cuss. usually servers don't allow cussing anyway. it just makes you seem unintelligent.
3. Don't ask for moderator. It just annoys the current admin and it's a waste of their time.
4. Have fun! it really doesn't help peoples opinions about you if your just on the server to pout.
5. Don't grief. This just like asking for mod just wastes the admins time and ruins people's hard work.

That's all i could think of for now