eyes
when ure smile is fake, i can tell it through your eyes.
when you try acting innocent, your eyes enact a guilty picture.
and you, i saw your lie through already- your eyes aren't convincing enough.
there's this saying that goes that to tell if a smile is geniune, look into that eye for the "twinkle". you can tell a fake one from a real one. it's written in one of Roald Dahl's book, i read it when i was a kid.
but i realize this to be really true. Although it's written in a fiction storybook.