Kotoko is dramatically throwing a temper tantrum because she can't eat the food your currently holding, even though she doesn't have any teeth to eat it yet.

"Wah! Bahwah! Mahw! Mwha! MHAw!" Her tiny hands balled up into little fist and her chubby cheeks puffed out, her face all pink, almost as pink as the onesie she's wearing.