Whenever I go to the U.S. I am always amazed by the number of “thank you”, “what’s up”, “you find everything ok” and “sorry” that hit me on an hourly basis. 

They don’t mean it half of the time. Just as “depends” and “maybe” doesn’t mean anything from Indians. 

Classic case of not owning the outcome!
Just because you do something a lot doesn’t mean you are good at it. 

Just because you said something doesn’t mean someone heard it. 

Just because someone heard it doesn’t mean they felt it. 

Just because someone didn’t respond doesn’t mean they didn’t hear anything.