Face ID works well for quickly unlocking the iPhone X and newer, but until now it has been limited to only one face, making it impossible to give a trusted family member quick access with Face ID. Instead, such people had to wait for Face ID to fail and then tap in your passcode. That’s all in the past, because iOS 12 supports two faces, much as Touch ID–based devices support up to five fingers. To set up another face on your iPhone, go to Settings > Face ID & Passcode. Enter your passcode and tap Set Up an Alternate Appearance. Give the phone to the person whose face you want to record and have them follow the setup directions.