「 Add in a pinch of baking soda and it'll get the smell of coffee right out. 」 [ It's Sojiro's way of saying "sure" and helping out -- needlessly, given that the smell of coffee permeates everything so deeply that there's no point in trying to get it out of the aprons. Akira's pretty sure his entire class can tell he lives near coffee because it's sunk into his uniform so thoroughly.

At least it's a nice smell. ]

Here. [ Akira offers Akechi a few more bills. He knows he won't want them, but -- ]

Grab some snacks for everyone. And some for yourself. [ Do this nice thing for yourself that Akira is trying to disguise as being for the entire Phantom Thieves. ]