My parents always tell me that I have to take things from adults with both hands.
In Australia, you shouldn't comment on a person's accent.
Under the class rules, we have to turn off our mobile phones in class.
In India, you mustn't shake hands with women. It's a taboo.
When eating in a Brazil restaurant, you should tip the waiter 10% of the bill.
Xin hay nhất ạ.