How to stop your stomic from making sounds?

Keep snacks with you. Carrying a nourishing snack to eat midmorning helps many people. I am talking about a small box of raisins, a low-sugar granola bar (or half), a piece of hard candy.
It is normal. A stoma will make noises as liquid and gas is expelled. This is normal. If it bothers you then i suggest you try a low fiber or low ruffage diet to see if it decreases amount of flatulence.