Ok so, for some reason I don't like using the word giggle or chuckle, I seriously don't know why. Instead, I use laugh quietly, or softly, and I think it's getting repetitive.
Are there any other ways to describe this? Example:
"Oh no...Not this again..." Jay said and Jacob laughed quietly, picking up a plastic knife. "Knife-y Jr Jr."
(BTW, that's an inside joke from my story)