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If you are too close it makes the nose look bigger! Nobody wants that. Stand back and zoom in.
Have the lens at the same level as the nose and the nose in the centre of the frame. The head should be at least half filling the frame.
If the ears are equal on both sides you are probably square on. In this example the ears are a good indication that something is wrong.
Best avoided, but I can straighten it out for the MeMask.