Solve today's Word of the Day to earn extra tokens.
 
Tap the Word of the Day button, at the top right of the home screen to open today's puzzle.

You'll see a picture from one of the puzzles in the game. Use the keyboard at the bottom of the screen to enter a word related to the image and solve the puzzle.
 
The reward increases each consecutive day you solve the puzzle up to a maximum of 10 tokens.