How do you tell your co-workers to cover their mouth when they cough - in a nice and polite way without offending them? There are about 5 people that I work with that walk down the hall and they DO NOT cover their mouth when they cough? And they also do not cover their nose when they sneeze. C'MON PEOPLE !!!!!!!!!!! I'm not sure why they think that other people want to inhale their germs and get their kudies. How can you not cover your mouth when you cough? I don't get it.