You can talk with the friend you are playing against by using the game's Chat feature. To activate Chat, please follow these steps:
1. Tap on your ‘Profile’.

2. Tap the ‘Settings’ tab.

3. Toggle the Chat notifications on.

While playing, you can access Chat without leaving the board. Here's how:
1. Tap the Chat icon in the upper right-hand corner of the board.
2. Type your message and send.