There is a look that every Disney princess has at one point during their movies. From Cinderella to Mulan. I am especially imagining Belle, looking at the Beast, as if just realizing who he is.
In the animation, the eyes squint, and there is a little circle drawn in the inside corner of each eye, near the nose. It is a distinct look and Disney Princesses do it.
They do it when they are curious about a life they have only dreamt of before, as in Ariel's peer at Eric's ship. Or when they are faced with the Beast and because they are wholly good and moral as all women are supposed to be, imagine "there's something sweet and almost kind" there.
And I admit, I have done the Princess Peer in the mirror at various moments throughout my young life. I imagined looking this way was mature, adult, wise. But it's a little stupid.