You can send them extra lives so they can have even more fun playing match-3 levels. To send lives, follow these steps:
1. Click the Friends icon on the left sidebar to open your friends list.
2. Click the Heart icon next to the friend you want to send a life to.
3. Confirm your action.
4. You can only send one life per friend per day. After sending a life, a timer begins counting down the time left before you can send another one. Once the timer disappears, you'll be able to click the button again.

You can also send lives to all of your friends at once. Just click the heart icon in the upper-left corner of the screen and click Send in the pop-up window. This will check off every person on your friends list. Make sure you only mark the friends you want to send lives to before clicking Send again.