Nowaday, people around the world can get information on the internet whenever they want. So, for most people the differences between different cultures are familiar to them, which is very different from the past time and also help you avoid being embarrassed while traveling abroad. For example, in China, the waiters in restaurants usually don't ask for tips. If you give them tips, it looks very odd. The waiters also think that they are not respected. The table manners might be the most difference between West and East. You can see people talking loudly with others while eating in China. It's very common. on other sides, the differences also exist. For another example, if you hear a truck coming by with music In China, don't think that you are able to buy an ice cream. They are just trash carrying trucks. The music just reminds people to take them trash out. So, when you visit a country next time and see something are very different from your country, don't be angry first.You are also not offended ,it's just cultural differences. They are very interesting.