Firstly take a picture of your face:
then turn it upside down:
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Do you think it looks fairly normal
(apart from being upside down!)
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well here is that same second image turned the right way up . . .
it has had the eyes turned upside down with a little image tweaking. The mind does not notice them, as it is used to seeing the eyes the normal way up! strange hey? - I wonder how it works for looking at people you dont know - obviously im very used my own mug. . .