I have heard that you can set up a second Face ID on iphone. How is this done as it could be useful?

Jonathan Fincher The option to add another Face ID is a new IOS 12 feature that was introduced as a means of capturing an alternate appearance for ourselves, such as wearing glasses, cultivating a beard or even wearing a favourite hat. It can also be useful if you have a close friend or family member who also uses your iphone or may need to access it in an emergency. Whatever the purpose, here’s how to set it up…