What did Shouko say to Ishida in the coming of age ceremony that made Ueno jealous? I don't understand what they are saying. Could someone translate this?
Four fingers raised, thumb pulled in is "ke", while full fist means "sa".


Together they are "kesa", which means "this morning".

Shouko is referring to the hardships they had that morning with putting on their kimono, doing their hair, etc. We know Ishida knows about it because Shouko's mother has shown him a picture about the girls getting ready,


so he reacts with "beautiful".

Explanation for the sign he makes :