The different manners in my country and New Zealand

Different countries or regions have different manners. Usually, most of the manners of human being are almost the same or very similar. For example, people say “Thank you” if they receive help or benefit from someone else. However, some manners are different. Some manners in your own country could offend people in another country. For instance, in New Zealand, a male could hug or even kiss a female, yet it is definitely embarrassing if he does it in China. Usually kissing a female is a “sex” signal in China, but in New Zealand, kissing on the cheeks is a common manner which means “I respect you”. In New Zealand, it is treated as rude manner if people speak loudly in public areas, such as at a restaurant, where they are enjoying the delicious food. But unfortunately, Chinese people very often speak loudly at a restaurant when they are eating. I think it is partly because Chinese people always want to make sure that the others are listening to them speaking. The other reason why Chinese people speak so loudly is probably because there are always too many people at restaurants.