Avira and ujm raise an interesting question: where is the boundary between behaving morally in the nonjewish world and accepting what we should not. Even haleivi’s simple list is questionable: not just freedom and racism, but even opening a door for a woman so that she would walk in front…
Rather than arguing about boundaries, I would rather make a list of unquestionable items and train yourself in those, like returning items (I have to concede finally a place where walking in a bekesha helps to create a kiddush Hashem), paying on time, following traffic rules, paying taxes, keeping one’s word, etc