The last time I visited the U.S., I called someone "sir" in English for the first time ever.  
He helped me get my bag down from the overhead compartment, and I said, "Thank you, sir."  It just slipped out.  It was weird.  I'm from California: we address groups of elderly ladies as "you guys."  We call our parents "dude."  We don't say "sir."  
It made me realize how much I've acculturated to my adopted country: the effusive politeness, especially when dealing with an elder, has become second nature.  I don't have the entire script down, yet, though: a real, old-school resident of Tlacochahuaya can draw out a simple "thanks" into a ten-minute exchange.  
It's that way with a lot of things: I'm stuck somewhere in the middle, no longer entirely comfortable in my home culture, but nowhere near being Mexican.  Look!  I made you a poorly formatted chart!
San Jose 
 | 
My Little World 
 | 
Tlacochahuaya 
 | |
Politeness 
 | 
Person A: Thanks. 
Person B: Sure.   
 | 
Person A: Thank you, sir/ma’am.  Very nice of you.   
Person B: It was nothing.   
 | 
Person A: A thousand thanks, sir/ma'am. 
Person B:  No, it is I who thank you. 
Person A: You’re too kind. 
Person B:  Truly, it was a pleasure.   
Etc., etc.   
 | 
Meat 
 | 
Eats only pre-packaged, pre-cut, de-boned, and de-skinned meat.  (Or, optionally, vegetarian.)     
 | 
Eats meat that is clearly part of an animal’s body.  Can look at organ meat without puking.     
 | 
Chews on the chicken foot, orders brain tacos. 
 | 
Patience 
 | 
"I want it yesterday."   
 | 
"I want it tomorrow.  Or the day after."    
 | 
"I’d prefer to have it by next Wednesday, but I’d be willing to wait six or seven months.  While standing in line.  In the burning sun."   
 | 
Technology 
 | 
iPhone, iPad, iPod, iHouse, iBrain, etc.   
 | 
$20 cell phone with no camera.  5-year-old digital camera (larger than a pack of cards). 
 | 
Donkey cart.   
 | 


