A co-worker of mine frequently has candy or chips while he's working. I don't mind if he's snacking, the problem is what he does while snacking...he chews with his mouth open. I don't sit close enough to see what he's chewing, but I can certainly hear it, it's somewhat gross and is a distraction.
Often times I resort to just putting on my headphones to block out the noise, but that shouldn't be necessary. I want to ask him about trying to close his mouth when chewing but am unsure about how to approach this.
Is this something I should even approach? Should it be left to management to bring it up to him?