When you are in another country, some people choose to keep their custom, while others don't, which do you prefer?

With the fast development of the society , the world is gradually becom<strike>es</strike>ing a small villiage.There are tons of <strike>choices</strike>options for <strike>you</strike> people to <strike>choose to </strike>stay in different countries.<strike>Then </strike>Many people will come across<strike> the </strike>culture shock .Many of them will doubt whether <strike>i  </strike>they should keep <strike>my</strike> their own customs or follow the famous saying "when in Rome ,do as the Romans do". <strike>In my point of view</strike> Personally, I prefer to follow the customs of the new country.