What does Shoko say to Yuzuru in chapter 12?
Panel 3 (Not sure about this one)

Sign: Me (eye) - you - heart
Meaning: What's with that look? What are you thinking?

Or,

Sign: You - money - receive
Meaning: Did you receive money?

Panel 4

Sign: He - sorry
Meaning: Apologize to him (Shoya)

Panel 5

Sign: Can't be helped - together -
 apologize
Meaning: Can't be helped, let's go apologize together

Panel 7


   Sign: I - leave it alone - you
 Meaning: I don't need you, do what you want!




References: item777's blog (Japanese), los-endos' blog (Japanese).