Now, China is not a place for everyone; I repeat, China is not for everyone! Many expats get 'burned-out' by the country, others complain about the prevalent racism here, and some complain about the rampant materialism in the country; all of these is true, so don't come here expecting a 'Shangrila-paradise" here...
Having said all this...please don't be discouraged from visiting China; whether your Asian, Black, White or whatever, you will have an incredible experience during your time here, that in the future, you can look back at amazement at all things you've experienced in the country!
I wanted to write a thread detailing what's it like being an 'Asian, non-Chinese in the country. Too often, overseas Asians get overlooked when talking about China. You only usually hear about the experiences of Whites or Blacks in China, not Korean Americans and other Asians in most other forums. So, I figured why not give my experiences as a Korean American in China:
The Advantages:
1) Many Blacks and Whites that I know complain about the stares they receive from the Chinese; some often have told me of instances where Chinese women would clutch their bags, avoid talking to Westerners, or receive hostile reactions from the natives.
As an Asian--if you look East Asian--you will not receive any of the stares or glares that other Westerners receive on a daily basis. Also, you will not hear Chinese people talking 'about you' behind your back--because they perceive you as 'one of them.'
2) When I am out dating with a Chinese girls, I don't receive hostile and angry looks from Chinese men or quizzical expressions from Chinese females, such as what some interracial couples receive in China.
3) Until I open my mouth, people think 'I'm Chinese,' so it's easier for me to 'blend in' to my environment and not 'stick-out' like a sore thumb.
4) Some Chinese are fascinated with Korean culture, so there is some common bond with some Chinese people that I meet. Some Chinese even like Japanese culture, although they won't say it in public, most of the time.
5) Most (though not all) Chinese females don't have the kind of hesitancy in dating an Asian foreigner as compared to dating a non-Asian Westerner; some Chinese females are resistant to dating foreign (non-Asian) men.
6) I think once I've fully learned the language, I'm virtually indistinguishable from your everyday Chinese person.
7) Some Chinese are really interested in my experiences living overseas as an Asian, and especially as an Asian-American.

9) I feel that as a long as I don't have to speak to anyone in Chinese, I can do whatever I want--something that non-Asian foreigners don't have the privilege of doing; for example, if I want to scream at someone or act a little crazy or get drunk, no one will say or think: 'look at that damn foreigner, why doesn't he get the hell out of the country.' Or, have someone point and say: 'look at that stupid gweilo or foreigner!'
10) I think having an "American passport" along with the ability to speak fluent English, I'm really at an advantage to most other Chinese people, obviously. Some are even are jealous of me.
11) There is a large Korean population in China. Also, there are some Filipinos, Japanese, and Taiwanese in China as well. So, at least I can get involved in that community--along with the Chinese and Western expat community as well.
Disadvantages:
1) As an English teacher, you will be discriminated against because you are not seen as "Blond-hair, blue-eyed" Caucasian. Chinese parents are extremely racist and xenophobic in this regard...
2) Since you are seen as "Chinese," people expect you to be fluent in Mandarin, which can be very annoying--especially for someone with so little ability to speak the language. When I try to speak some Chinese, I do sometimes get mocked by Chinese people--which can be just plain rude!
3) Some Chinese are racist against Koreans, Japanese, and Southeast Asians; so, even though you are Asian, you will still receive some outright racism (though this is extremely rare!).
4) The Chinese treat each other very poorly! I've noticed this...and it's really sad to see. Unlike, say, Koreans, there is no sense of unity and mutual
togetherness that I see from the Chinese; so, even though you may be overseas Chinese, there is no shared bond that you see in other ethnicities like Koreans, Italians, Mexicans, and other 'closely-knit' countrymen.
For example, whenever I meet or talk to Koreans in China, whether they be ethnic Koreans in China, Korean immigrants or overseas Koreans like me, there is always a shared sense of 'brotherhood' and bond between us, no matter how different our backgrounds may be. We also go out of our way to help each other, and to share our culture with each other. The Chinese, on the other hand, do not have this; take, for instance, how the Taiwanese, Hong Kong and Singaporean Chinese 'look-down' on mainland Chinese. (HK people call Chinese mainlander's, locusts.)
My roommate--who is Italian Canadian--says the same thing about Italians: they always vouch for each other, just like Koreans.
Or, take how overseas Chinese sometimes aren't always appreciated in China; take the example of Baoning--and how, even though he's fluent in English and grew-up in the West, while working in an English language institute, he was constantly yelled-at by this bitchy Chinese and by his other co-workers. In Korea, overseas Koreans are called "Gyopo." There, overseas Koreans are treated much better than overseas Chinese...
As a result, you will not be treated with greater respect--if you are Asian, but look Chinese--because you are from overseas; that's because you don't stand-out as a foreigner, unlike, say, Whites or Blacks in China. And, I must say...Chinese people can be really nasty and rude with each other, at times...so expect to receive similar treatment as an Asian (that looks Chinese, of course).
5) White people do get some special 'privileges' for being White; such as being spoken to in English by Chinese merchants (if they can speak English); being 'treated' better than Chinese or other Asians; and the Chinese 'kow-towing' or giving me respect to White people than even other Chinese people (which is pathetic...I know).
That said...for some (not all) Chinese, it's often a 'back-handed' respect, because some Chinese do not like White people, but only want to save 'face' by acting respectful to the "gweilo." I've met White expats in China who say they don't like the treatment they receive in China, for being a White person, unfortunately...
6) Just like with other expats (Black, White, Asian, whatever...), when you start speaking English in a crowded place, the Chinese like to stare or give off an impression of 'what the hell are they talking about' kind-of-look, or downright odd-looks because you're not speaking Chinese.
7) Some Chinese females don't like Asian men, but prefer White or even Black men over 'us.'

9) Some Chinese are 'White-worshippers': In other words, they like to look-down on Blacks, Indians and other dark-skinned people, but treat Whites as Gods, sometimes.
10) The Chinese do not have an understanding of what an "Asian American" is. They also do not understand how someone like me can speak fluent English, as an Asian. The Chinese are quite clueless sometimes about the Western world. How do they think a Chinese American/Canadian/Australian can communicate in their countries? LOL
* This one applies to everyone, whether they be Black, White or Asian.
I've been told by people of all races here, that Chinese people aren't the most friendliest or most open people you will find in this region of the world; in fact, they're just the opposite. You really have to know the language and be very 'assimilated' to the Chinese culture and way of thinking, or else you will never, truly find very close friends here, for the most part...
If you desire openness and outright friendliness, than the Philippines is your best bet in Asia.
Disclaimer: My experiences may only apply to those Asians that look 'East Asian." If you look more "South-East Asian," or a very dark-skinned Asian, i.e. a Negro Filipino, an Indian or Pakistani, you're experiences may well be much different than mines...(I think it could be a bad situation in your case, unfortunately...)