All you've really got to do in this world is smile damn it. 
Just smile, coz' you never quite know how many may secretly be falling in love with you.
That smile may start their day, it may make someone feel better, it could make someone keep hating you, damn it could even be your secret to a live well lived. 
So smile, smile just because you can. 
Because you have the right too.
And most importantly there's nothing more satisfying in this world than living with a smile on your face, because that simply means that you love yourself enough to know that you're important and so is your own happiness.
Lol. I'm done now. So start smiling already :D
xx