How to add a face id to my phone

- How to add a second face id to my phone
- How to add another face id to my phone
- How do i add a face id to my phone
- How to add another person's face id to my phone
- How do i add a second face id to my phone
- How do i add another face id to my phone
- How can i add another face id to my phone
- Can i add a face id to my phone
- How do i add another person's face id to my phone