Re: Hello!
Hello! Welcome!
If you take a gander at the "Wanted-Players" section -- you will see NUMEROUS games being advertised. Reading the descriptions, decide if the game and system of choice suits your fancy: then click on the game title (will be a link at the top of the description) and at the lower-right, there will be an "apply to game" button.
The first Acronym to learn on this site is "RTJ" or "RtJ" which means Request to Join. Nearly every game has a thread/post about it - read it, and that will let you know what you need to do to join that person's game.
Also - DO read the FAQ on this site - it's probably the best-ever written. It is outstanding information truncated into a workable amount of text.