* Munching: This is a general term for chewing, but it often implies a louder, more deliberate chewing motion.
* Crunching: This word specifically implies a loud, crushing sound, like when you're chewing on something hard.
* Gnawing: This word suggests a persistent, often forceful chewing, as if you're trying to break something down.
* Chewing loudly: This is a more straightforward way to describe the noise, but it can sound a bit blunt.
* Chewing with your mouth open: This is a more specific description, often used to point out someone's poor table manners.
The best word to use will depend on the specific context and the desired level of formality.