Interracial relationships

As an expat many of us have been, are or will be in the situation of being in an interracial relationship. As a white person in Namibia you can guess that this is on my mind a lot.
Honestly, when you see an interracial couple do you...

1. Notice them with a sort of curiosity
2. Don’t even notice it at all; are indifferent
3. Think its great!
4. All of the above ;)

Personally, I think it’s no big deal at all, but I notice people and the “looks” that interracial couples get.