The Meaning of my SMILE

I smile
When I am fascinated
I smile
When I am scared
I smile
When I am admired
I smile
When I am dumped
I smile
When I’m hiding something
I smile
When I want to say odd things
I smile
When I’m being bitchy
I smile
When I’m a little bit shy
I smile
When I’m about to get angry
I smile
When I wanted to cry

Guess,
I can’t name it all
For all I know
My smile makes you fall

Now,
Can you define my smile? =)