In order to find your friends that playing the game, you need to connect to Facebook in the game first.
Please follow these steps:
1) Connect to Wifi (sometimes the data connection is not strong enough, so you must use Wifi for positive results)
2) Tap on the three wheeler located to the right of Ted's head
3) Follow the directions to connect on Facebook
Once you are connected, you'll be able to see which of your friends are also playing the game and connected on Facebook. Click on their name to visit their operation. To back to your place, click the icon of the College in the lower left of the screen.