" It ’s the most expensive ride you will ever take and it can ruin the great unwashed financially for years . "

Being an American, there are plenty of things that I do (and I’m sure you do too) without giving it much thought — such as tipping wait staff or not standing on top of the person who is standing in line in front of me at the post office.

I never really thought about these everyday cultural habits until I stumbled upon a Reddit thread discussing American culture. Redditor u/firebullmonkeyasked the question, “People from the US, what‘s a no-go in American culture?” and the responses made me nod my head in agreement. Here are some of them.

1.“Do NOT get out of the car to greet the officer if you’re pulled over by a cop. Stay in the car and let the officer come to you. If you need to reach for something like your license, tell the cop you are doing so before you do it.”

2.“Not often mentioned but Americans like personal space. Leave room between you and the person you’re speaking to or lining up behind.”

— u / Catinthemirror

3.“Never cut in line. I saw that a lot in Europe.”

4.“Politics…don’t ever EVER bring up politics.”

— u / lokis_dad

5.“Unless it is a clear and dire emergency, you ask someone if they need an ambulance before you call for one. It’s the most expensive taxi you will ever take and it can ruin most people financially for years.”

6.“Do NOT hitchhike. It is not safe here.”

— uranium / Aceandmace

7.“You have to tip if you go to a dine-in/takeout restaurant. You don’t have to tip Subway or Pizza Hut or any other national franchise restaurant like that.”

8.“Americans may be friendly in passing, but that doesn’t mean we want to take you home and bebest friends. We tend to be called fake a lot, but we make an effort to be nice — especially while working at customer service jobs.”

— atomic number 92 / ChineseChaiTea

9.“Reusing the same plate when you go up for a second round at the buffet. You’ve got to get a new one.”

10.“Be careful not to trespass on private property.”

— u / CarelessResearcher56

11.“Conversations about religion, politics, or other personal beliefs. It will most likely devolve into one person trying to convince another that their viewpoint is correct and that the listener is wrong.”

12.“When dining out, the waiter comes to you. It is considered rude to call the waiter over.”

13.“Walking places in the suburbs or smaller cities. It’s dangerous and you’ll be seen as suspicious. I’ve had friends get towed because they parked in front of one store and then walked across the street to another.”

— atomic number 92 / pastorCharliemaigne

14.“Talking about your salary. Talking about someone’s weight. Driving too slow in the left hand lane.”

15.“Don’t call someone’s house ‘homely’ in America. Out here it’s an insult.”

— uranium / Satires _

16.“In the south, you might get your ass kicked for honking your horn.”

17.“One thing I can say is that many Americans aren’t afraid of confrontation. A lot of them will be nice as a formality, just to get to know you and be a good neighbor but they wont shy away from talking shit if it comes down to it.”

— u / hisnameis_ERENYEAGER

observe : A comment with a discriminatory Reddit username has been removed . BuzzFeed not support invidious or mean speech in any word form .

Oprah Winfrey holding her hand to her chin and squinting with the text, "Interesting"

An up-close picture of blurry police car lights

People standing on line outside waiting to go into a building

An ambulance outside of a hospital's emergency room

The exterior of a Subway store

A man filling up his plate at a buffet

Michael Scott from "The Office" shaking his head no

A waiter's hands and apron showing their notepad and pen

A stack of $100 bills laid out

A close up image of a hand honking a car horn