During maths I was thinking of you but I cannot

I have had a really bad day and it always makes me feel better to see a pretty girl smile. So, would you smile for me?
I see myself as a crayon, I may not be your favorite color: But I know someday, you will need me to complete your picture!
The spaces between your fingers are meant to be filled with mine.
If you want me in your life, put me there. I should not be fighting for a spot.
My heart has a room and it’s empty. Do you want to move in?
There is a clown in my heart. Small and very special, he can dance and jump, laugh and sing… are you sad and crying, you can borrow him.