How do i add another iphone to find my app

- How do i add another phone to find my app
- How do i add another iphone to my find my phone app
- How do i add an iphone to find my app
- How to add another iphone to find my phone app
- How do i add someone to find my iphone app
- How do i add find my iphone to my apple watch
- How do i add airpods to find my iphone app
- How to add another device to find my iphone app
- How do i add another person's phone to my find my phone app