No matter how close, how intimate you are with your friends, siblings, colleagues, even your lover, those three words will show your truly manner and your class as -what so called- Homo sapiens kind of creature.
Again. This is not about where do you come from, this is not about how rich and famous your family are, this is not about which university you have graduated from. But how you treat people, how you speak to them, may show your truly attitude.
Thus for sure, what kind of creature you are..