There are some things that you do for diplomacy regardless of your background. In Japan you would take off your shoes before entering someone’s home. They of course would offer house slippers if wanted. In India you might not show as much public affection for that is not their culture if I remember correctly. However, if you don’t like the person or want to be where you are then don’t go if you are not going to make any effort in following the customs just as they will do everything they can to make you feel welcome in their home. This is the diplomatic to way street, driven only to obtain a two way passage to community.