I don't think it's so much a "Westerner" thing, as that adding a touch of a foreign language makes it sound cool - anime (I've noticed examples in Japanese, Chinese, and Korean works, though don't ask me to name what they were) is riddled with bits of English and German, often used just as badly by a creator who looked it up in a dictionary, and there's a relatively famous quote about how you can say "Yes, that is a large amount of corn" in Latin and still sound profound. (You'd probably also still sound like you were making a challenge to a duel if you said "It's nice to meet you" in Klingon, but that probably has as much to do with Klingon customs as the language 
)
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows
)--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows