1. Afghans enjoy comparing cultures and are always ready to listen to the opinion or views of a foreign national on Afghanistan. However, average people prefer not to discuss the local armed and political conflicts. As soon as you get to know each other better, they confide in you easily and tell you personal opinions.
2. People who live in big Afghan cities know that handshaking is usual in the Western world. If you are a man and reach out your hand to a local man, he will not hesitate to reach out to you, too. However, handshaking with a local woman is an entirely different situation. If you are a man, most of the local women might feel very embarrassed to shake your hand, especially in front of other people, and in some cases, they might even flatly refuse.
3. It is rude and offensive to raise your voice or show your anger towards a local person.