First you need to sign in or make a account with facebook or with your mail.
The comment on the post. Write like this:
Name:(In real life name or nickname)
IGN:(You in game name)
Age:(You age) Dont lie!
How do you find us:(Have to be around 15 words or more!)
Tell us why you want to join our server: (Same here 15 words or more!)
When you have done this a Admin will look and will see if you can join!
Write it under "Share Your Thoughts" down in this post!
Have a good day Minecrafters!