Index -> Interface -> Casual Lobby -> Launching Matches
When players create or join a match, they enter the Match Launch screen. This screen lists each player's ready or unready status. There is also a chat area to communicate any player who joins the match. When you are ready to play, click your Ready to go button. Once both players have done so, the match will begin.
To learn more about how to play the match, see the section on Playing the Game..
