The Wooden Wheel offers you the chance to win either unlimited lives, boosts, or coins. All you need to do is tap the clapperboard in the middle to watch an Ad. Then the wheel will spin and after watching the Ad, you can claim your reward.
You can spin the Wooden Wheel 5 times in a row to receive a bonus gift. Once you have spun the wheel 5 times, you will have to wait a day until the next round. An exclamation mark next to the wheel icon on your map indicates when your next spin is waiting for you.