There are three types of blocking sign in the Play with Friends room:

1. When you create a table in the Custom Games room, you can leave the table and destroy the created table by clicking the blocking sign on your photo.

2. If another player has created the table, you can exit the game by clicking on the blocking sign.

3. When you create a game, you see such a blocking sign on each player's avatars, which means that the host of the game can kick the player according to their estimation before the game begins.