Choose the game that you want to play by clicking on its name and then you will see the different game lobbies where you can practice.

The first room you will see is the matchmaking room (the Play now room) where you can play vs real players. There you can choose between Beginners, Advanced, Professional rooms depending on your current game level.

If you prefer to practice with your friends, you can click on the "Play with friends" room, create a customized game by your preferences and invite your friends in that particular game.