When it comes to communication, be it by phone ... you commit an office etiquette no-no, and say or do the wrong thing at the wrong time? Humor always makes for a good comeback, Oliver advises.

(Of course, if you're reading this on your phone - don't put it down. But ignore notifications.) According to etiquette expert ... followed by taking too many photos (second); constantly checking ...

Meeting etiquette requires consideration and patience for everyone's unique situation. If you're in an office, avoid side ... a screen to check your email or phone during a meeting.