Alright Guys, So what's good?

Yes, as Micah kindly pointed out, you can do ::players to see the current amount of online players. There're many other useful commands available as well:

::home - Teleports you to Lumbridge, no recharge limit (no 30 min limit).
::yell [write sentence here] - Let's you talk to the rest of the server. There's a 30 sec time limit before you can do a 2nd ::yell.
::hideyell - Some people don't like to be bothered with ::yell so they can turn it off this way.
::combat - Let's you predict the percentage chance of you being able to strike an opponent in combat and him/her being able to strike you back.
::outfit - Let's you change your clothes at will. You may do this almost anywhere at almost any time.
For each and every command, you type in the "::" followed by the command and then press ENTER.
Credits to Doyoy for the Commands Guide.

Why not post an Intro at the Introductions section of the forums, we'll be able to welcome you better.