Place the phone/camera at least 2m or 6ft away at eye level. Look straight at the camera without making a weird face or trying hard to look good. Move your head left, right, up and down to capture all the angles. This is how you look like to everyone.
Don't do this if you're suicidal.
None of this matters if the camera is at least 6ft or 2m away. This is cope for subhumans, but it's simply irrelevant. Besides, virtually all modern smartphones have at least 16mm focal length which is more than enough for 2m or 6ft distance.
Place the camera 6+ ft away in video mode. This is 99.999% accurate and it's how others see you.