A favorite driver can be added in a few ways. If you signed up on Sitbaq using a driver code, that driver will be added as a favorite automatically. At the end of your ride you will receive a notification which will allow you to add the driver as a favorite. Additionally, you can go to ride history and select the image of the driver. From the driver profile, you will be able to add the driver as a favorite. Once a driver is added as a favorite, a red badge will be added to the driver's profile picture as well as rides in your ride history.