If you want to know if someone is "real" tell them an obvious lie. A human will recognize it for what it is immediately, a cursed will not. They may look real, but they are not. Only real eyes realize real lies.
One of the simplest ways to stay happy is letting go of the things that makes you sad. Fill your heart with beauty, not with sorrow. Life is short… So love your life, smile and keep love in your heart ♥