Real genuine smiles: 8/10
Real fake smiles: 7/10
Overall: 15/20
Remarks:
+ Number 13 is creepy. I don't even know if it's male, female, or else.
+ I think there is a difference between knowing when a real genuine smile is really genuine and knowing when a real fake smile is really fake.
+ A naïve optimistic person will say that the 20 smiles are genuine and his mark will be 10/10 for genuine smiles and 0/10 for fake smiles, respectively.
+ A naïve pessimistic person will say that the 20 smiles are fake and his mark will be 0/10 for genuine smiles and 10/10 for fake smiles, respectively.
+ Convoluted? Yes, I'm like that.
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