You've made an interesting transition, brah. Moving from China to Hawaii, well I can't really think of a good analogy now, but it would be a less than favorable one
I can probably give you some insight... I was born and raised in Hawaii, lived there for 3 decades. Let me start by saying this; Your game will have to be tight- you really have to have your Sh$t together. Between the military, surfers, international business men, and hometown alphas, (IMO) you've got a serious case of too many sausages on one island! There are a lot of local beauties, but they're outnumbered by the guys substantially. For the most part, the ladies know this... and they aren't dumb. So unless you happen to be the first love of one of the beautiful local gals (happens fairly often with the HS/military crowd), you REALLY have to be a high-value dude to get a lady's attention.
Another thing you might find is that most of the attractive, quality women are already taken. This doesn't stop a lot of folks, but remember, it's still an island. Word gets around.
I'll try to chime in with more advice when I can.