There is something I don’t like about Face ID. The phone does not have the button press to know when to turn the screen on so it tries to guess. It often turns the screen on for no reason, and then buttons on the screen can acidentally be pressed. It often turns my music off or turns my flashlight on and I end up walking around with my pants pocket glowing.
Turning the phone to face away from my body helps, and is the opposite of what I used to do.