You can greet everyone including people in foreign countries in your native language because that’show you like being greeted (that is specific and offensive) or you can take it more broadly and greet everyone in their native language because you like to be greeted in yours (that’s less specific and nice).
I’d like to provide a helpful explanation, but I don’t know how to explain it more clearly than I already have. Hopefully someone will leave a comment that phrases things better.
What about any of this has been specific?
You can greet everyone including people in foreign countries in your native language because that’show you like being greeted (that is specific and offensive) or you can take it more broadly and greet everyone in their native language because you like to be greeted in yours (that’s less specific and nice).
I’d like to provide a helpful explanation, but I don’t know how to explain it more clearly than I already have. Hopefully someone will leave a comment that phrases things better.