Powder
Glinda carefully applied the powder to her face. It was a daily ritual, make-up, fancy dresses, one she was more and more often wishing she could do without. As Galinda these were all things she loved, but as Glinda they held less importance. But it was what people expected, so she continued.
She wished she could be more like Elphaba, strong and confident, not caring what others thought. She wished she could break out of her role, damn the consequences.
But, Glinda reflected, Elphaba did care, had her own mask. It was her outwardly confidence that hid her inner insecurities.