To start playing Tichu, you can "sit" at one of the available tables on the game's home screen or create your own table by clicking on one of the three options that the game provides you with:
After clicking on one of these options, a new tab appears to select the game settings:
Note that not all settings are available to new users. A new user can only bet 10 chips, while the rest of the betting options unlock as the user levels up.