If you come across a person or a friend and their breath or body stink do you tell them? or do you just manage or try to speed up the convo so you can work your way Sharp-Sharp before it kills you?

I personally think we should tell o most people with bad breath don't usually know their breath stink same with body odor sometimes......The only thing is that you should try to do it in a polite way....NLlander's what do you think?