I've only worked at Target for barely a week and a half now. And here are the languages I've heard being spoken while I cashier:
Indian (I'm guessing Hindi)
Oh, the other day I was able to practice my sign language when I found some co-workers signing. They were patient with my awkward signs since it has been a while!
So if you ever want to have an international experience, just apply to the Target store in Issaquah.