- burping at the end of a meal:
In UAE culture burping is rude, because it impolite and sickening. But in same cultures it’s not rude, it mean that the food is so good.
- avoiding eye contact during a conversation :
depend on the situation. Some feel it’s not rude, because they are respecting the person so they avoid the eye contact.The other feel it’s rude, because it mean that they are not interested on the conversation.
- calling someone by their first name:
It depend on the person who you are calling, If it older than you or in a higher position it’s rude to call them with their first name.But if you are calling your friend or your brothers it’s not rude.