What's your biggest insecurity?

Mine is my smile I don't know why whenever I smile naturally it becomes into a smirk which some my sister labeled as creepy/scary. Now I brushed that comment of but did out some thought into her observation. I guess my nose as well. Basically my whole expression that appears to other people as unusual I presume.
Whats your biggest insecurity?
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What the fuck have I done with the grammar. Forgive me , I guess my phone is going crazy.
What's your biggest insecurity?
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