I am concerned by the number of persons who I have heard "Americanize" someone else's name with no regard to the other person's preference. I recognize that some people will readily adapt their name to one that is easily pronounced in the culture they are in, but some feel strongly about their names. I also recognize that this happens the world over, not only in the U.S.
In my experience living in Africa, Central America and Europe, I did not change my name to be more easily pronouced for different cultures, but instead was patient in helping others to pronounce my name as best they could. When teaching English as a Foreign Language to others, I never assigned them English names either. I believe that a person's name is special to them and I respect their preference for how they wish to be called.
How do you feel about this? Do you try to say a person's name in the same way they introduce themselves, or do you feel it's okay to pronounce it as it would be said in your own language?