Do yall ever do the half smile?

this pic will be a little creepy when I'm done but best example I could find link

do you ever do this half smile? if you do when? I've found that the only times I ever do it is when I'm doing sexual things like just finish making out with a girl etc.
Yea I do it sometimes normally when I'm ______
Never do it
I don't smile because I'm emo
Select gender and age to cast your vote:
Do yall ever do the half smile?
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