Coaxed Poem by Ima Ryma

When I first saw your lovely face,
I knew that paint your face I must.
So we agreed on time and place.
I hoped in me that you would trust.
But as you sat and posed for me,
Such melancholy look you had.
I did yearn for your smile to be,
But you continued to look sad.
Over and over I did ask
You give a look that would beguile,
Rewarding me this painting task.
Oh please won't you give me a smile?

How to unlock a smile from you?
Mona Lisa what need I do?