What is the Share button for?

If you tap the Share button you will receive your personal promocode. Share it with your friends and get 5000 chips and 5 coins to your account for each friend once he or she reaches level 5 in the game.
Your friends get 5000 chips and 25 coins when activate the promocode.
Note the promocode is valid for level 1-3 players only. If your friend is higher level the promocode won't work.