I owed someone a poem

It's a funny thing her smile
'cause it doesn't always reach her eyes
and it's not that she's telling lies
it's just a granted courtesy
kinda like "Why yes, that's nice, here's my smile, see?".
Once in a while though, she loses control
and she ends up baring just a tiny piece of soul.
Her teeth flash and her eyes wrinkle
she giggles a little and her nose crinkles.
Then she hides behind her hands
and I think i might be someone who understands
It's cause she's let that bit of soul out before
and it seems like every time she does someone lets it crash to the floor.
but once in a while, when my gaze lingers
and I see the fleeting smile when she lowers her fingers
that little bit of soul is still there and it has bruises and breaks
it has seen its fair share of and liars and fakes
yet, I think, if she's given the time
that piece of soul it will be just fine
and maybe then, she'll let her guard down