Marsh: . . .*carefully opens the jar lid and takes mochi's gem out and gives it to alex* please be very careful with it . . . .

Well I can't show you because I need to use it on a gem or two

Marsh: what is this "trick"? *cocks head in confusion*

-rolls sleeve back down - it's not up my sleeve silly but yes I have a trick that worked with my brother..

Marsh: trick up your sleeve? *rolls up Alex's sleeve* what trick? {marsh is terrible with idioms. . . .}