Take this from a tourist-turn-resident.

1. Don't trust the Americans when it comes to the attractiveness of tourist traps

After being in New York for almost four years now, I have come to share my opinion with the locals on how boring and annoying Times Square is. However, anyone who has never been to New York loves being here - and you should never take the locals' word on how boring or tourist-trap-y a place is. It might not be a daily excitement for the people who have been here for a long time, but it is iconic and you'd probably kick yourself later if you don't go. Enjoy it, and enjoy it all - Statue of Liberty, Times Square, Empire State Building...do avoid Port Authority though. That place is a mess.

2. Don't downplay the locals' opinion when it comes to the potential dangers of said tourist traps

On the flip side, do trust the locals on what to be careful about at these places. The Times Square costumed-hagglers, the no-restroom-New-Years-Eve-Times-Square, the exorbitant price of New York Water Taxi, the fake taxi at JFK Airport, the long lines at Empire State Building and Rockefeller Tower... Locals have been here long enough for the disillusionment to set in, and while not being excited about tourist traps might be a downside, knowing the potential problems of these places is the upside. Trust locals on this, and ask them about it.

3. Don't compare your country to the US. Ever.

USA, USA, USA - the Americans think their country is top-notch and the best in everything, even when they don't say it or say otherwise. The teachers who complain about how the US ranks 27th in Mathematics will still feel disgruntled when you appear to share your disbelief at the wreck that is the Common Core. Americans are especially touchy about this, so keep your opinions to yourself. If this is a short trip, I think it would be natural - even with all the mess the USA is still an amazing place, and it will be easy to be awed by this wonderful country. Except if you're Canadian, or from the Scandinavian countries. Don't judge.

4. Don't display opinion about sports - especially "American" sports

There is one thing that many Americans are even more passionate about than their patriotic pride and that's their sports. Don't be annoyed about how "football" seems more like handegg (goodness gracious, that over-sized olive pit is in no way a "ball"!), or how the real football is played with 11 players on each side and a real spherical ball. Don't say things like "soccer is football actually". Don't show the weird face when Americans go overboard about hockey, baseball, basketball or the Super Bowl. Do not even mention that baseball, the favourite pastime of America, originated from a street game in Britain called the diamond.

5. Don't feel annoyed about tips

I never tip in my country, waitresses and waiters where I'm from get paid enough and you should only tip when you're being treated especially well! That's what I thought fresh off the boat (the A380 probably floats if you force it to I suppose.) In the US, the issue is a bit muddled - servers are not paid comfortably to live without tips in most places, and yet people still hold to the notion that tips are gifts. At the same time, it is generally expected that you tip regardless as well. Trust me when I say Americans are slowly realising the conundrum and working on it, but for now as a tourist just tip 15% or more.

6. Don't discuss race/gender issues or happenings

Americans are especially proud about how open-minded and diverse their society is, and for good reason, even when troubles persist. Just avoid talking too much about this issue if you can to avoid stepping on any toes. Don't say anything with the word Trump, wall, Cruz, Muslims, Syrians.

7. Ditto on politics, especially policies about immigration, military spending, healthcare, gun control and race/gender.

Unless you know that your host/companions are open-minded, peaceful orators, do not discuss politics, especially the aforementioned issues. At all. With the exception of the beautiful people on Parks and Recreation, people with differing political opinions in America hate each others guts - and they might hate you too if you don't agree with them on some opinions. On the flip side, if you do, they might take it that their opponents are even more wrong "because the world agrees with them", and worst case scenario parade you around as an unwilling supporter. I've been through this. You don't want this.

8. Don't look at or show opinion about obese Americans

In your country, fat people might be shunned, and obesity is widely accepted as a health problem. In America, there's an odd duality of "love your image" and "skinny is good". Being vocal about folks in Wal-Mart will almost certainly earn you looks - you're either a bigot or a superficial hater. Don't say that "I'm not hating the person, I just think being fat is a serious health issue". Just be mum about it.

9. Don't assume the "stupid American" stereotype

Last but not least, don't assume Americans are stupid. They might know more about your country than you think, and with all the troubles in number 4, 5, 6, 7 and 8, you might be discouraged from even talking to them. Just talk to Americans, don't assume anything about their intelligence, and avoid those touchy waters. The majority of Americans love to talk, and once they've decided that you act with respect and friendliness, you'll oft be surprised. Once you're comfortable enough, you may allow yourself to touch 5, 6, 7 and
8.

Still avoid sports though. Even the most open-minded professor I know turns into a hardcore Patriots fan when cornered.

Edit: deleted the upvote beg thanks to encouragement from the comment :3 brightens my day considerably XD

Source: https://www.quora.com/What-should-I-absolutely-not-do-when-visiting-the-USA

Neteller here: www..com.ng

Nice. Thanks.

And other countries lists?

Get ready to eat onion rolls