A: This is one of those sticky situations in which it's best to put yourself in his shoes. Would you want someone to gently tell you that your breath is a little off or would you rather not know about it? It's as if he had something in his teeth or hanging from his nose. Sure it's embarrassing, but it's fixable! Tell him in a really loving way so he doesn't think you're grossed out by it. Once he gets the word, he can take steps to brush a little longer or chew some gum on the bus.