Tipping Culture:
In many countries, service charges are included in the bill, so tipping is not as common or is discretionary.
Sales Tax Added at Checkout:
Unlike many countries where the displayed price includes taxes, in the U.S., sales tax is added at the checkout, which can be surprising to foreigners.
Super-sized Food Portions:
The portion sizes at restaurants and fast-food establishments in the U.S. are often larger than what many foreigners are used to, which can be overwhelming.
Refrigerated Eggs:
In the U.S., eggs are typically stored in refrigerators at the grocery store, whereas in some countries, they are kept at room temperature.
Personal Space and Smiling at Strangers:
Americans are often known for being friendly and polite, which can sometimes come across as overly familiar or insincere to people from cultures with different norms.
The Obsession with Ice:
Americans tend to prefer drinks with a lot of ice, which is not as common in many other countries.
Pledge of Allegiance:
The practice of reciting the Pledge of Allegiance in schools is unique to the U.S. and might seem unusual to foreigners.