Vianna smiled faintly as Ferris admitted that he was frowning a bit, but just when she was about to ask what was wrong, the boy clarified that he wasn't necessarily frowning because he was upset or anything. It then dawned on the girl that he must have been testing her, and she chuckled softly. "I prefer it when you smile," she said with a smile of her own before her fingers left his face and came to her own instead as she let out a sleepy yawn. She had been tired and sleepy before, and keeping her eyes closed only seemed to make her crave sleep even more.