I'm looking for the greeting plus the standard response. My favoured language would be Russian, but I'll accept anything that's a little more exotic than French, German, Italian, or Spanish.
Here's the scene-let:
Guy A hears doorbell, goes to front door to answer it.
Guy B immediately says "hello" or "good morning" or whatever in our chosen foreign language.
Guy A responds with...well, whatever the standard response would be. In English, I can only think of "How are you?" and "I'm fine" but I'm sure there's a lot more variety in other languages.
Thanks,
Yvonne