When you travel, expect things not to be like they are "back home". Manners, laws, food, traffic, lodging, standards, language and so on will to some extent differ from where you live. Here is the same text in Chinese (Traditional):
旅行時你會發現一切都和「家鄉」不一樣。無論禮節、法律、食物、交通、住宿、行為準則和語言等等，多少都會和你居住的地方有點差異。