How do I start a game against another person?

From the main lobby tap the "Coin Game" or "Rating Game" option. Upon doing so, you will have the option to click through filters that will specify which levels, stakes and time controls you desire. Note that selecting multiple options will provide a faster opponent matching experience.

The system will then search for an available opponent close to your skill level for a rated game or a coin game, depending on your selection. You can see the "Searching..." status while it looks for a match.

After that, you'll be in the game interface and having fun playing against your paired opponent!