on 19-09-2020 15:49
on 19-09-2020 15:50
on 19-09-2020 16:57
on 19-09-2020 16:57
You can't unless you get hold of her phone to intercept the verification texts and order emails.
You can buy direct from Apple to avoid this and then just setup a data plan later when you give her the watch if you prefer.