16. Laughing with your mouth open
via GIPHY
In Japan, laughter that exposes your pearly whites is considered horse-like and impolite – sort of like noisy, open-mouthed eating is considered rude to Americans.
In South America, claiming you’re from America, rather than the United States, is seen as being politically incorrect, as it implies that only the US should be considered America, and that South America is unworthy of the title.
> In a lot of countries, especially in the Middle East, Latin America, Western Africa, Russia and Greece, a thumbs up basically has the same meaning as holding up a middle finger does for Americans.
In Russia, a thumbs up basically has the same meaning as it does in the US (as well as holding up a middle finger).