Hmmm...pretty sure Mimi told me Taiwan. But wouldn't be the first time a provider changed her story. That said, she does look more exotic, so I believe the Malay mix story. Jessica also told me Taiwan. One of them, I think Jessica, told me she was actually aboriginal Taiwanese, though she doesn't look it, so I was skeptical. Guess that's not really relevant since Jessica hasn't been seen in what, 8 months?
Point is, learn Mandarin for universality, but if you're marrying someone from Guangzhou/HK, learn Cantonese: I imagine its rarer to find a Cantonese speaking customer than Mandarin, so they'll probably get an extra kick out of that. That, and 260 will get you 2 pops.