uhm... that's a huge generalization. Lets just all remember that there is one important european country that has laws in effect that are designed to protect their language from foreign influence and that using too many american words in things like magazines can result in fines...
Anyways, I've noticed that many people change the way they pronounce words to fit the language they're speaking. I have several japanese speaking friends, who when speaking to english speakers and pronounce words like "katana" and "akira" in the stereotypical american way: KAY-tana or ah-kee-rah. Similarly, when I speak korean and useenglish words, I say those words with a korean accent.