They Don't Know Me

Beautiful girl,
They say.
Nearly pretty,
I correct.
They disagree,
But they don't know me.
Not really,
At least.
They know the pictures,
That I choose to show.
And the words,
That I choose to tell.
But really,
They don't know me.
My parents say,
That I'm an open book.
But really,
They don't know me either.
I have my secrets,
That I choose to hide.
I have my quirks,
That nobody knows.
They say they know me,
But in all reality.
What do they know?