Oversea Chinese must visit China whenever it is possible; either paying tribute to Chinese ancestors or visit friends and relatives, such activities can truly prevent intermarriage with non-Chinese. Learning to speak Chinese is also important, if you can not communicate in Chinese then the next step is assimilation. Lastly, not to join any religion, spiritual brain-wash speeds up assimilation or completely destroys the Chinese people. If you are Chinese, you are born a Chinese and die a Chinese, religion can not change that. Also, induce Chinese to intermarry with non-Chinese is a sin.
中国人的定义: 亲生父母是百分之百属于中国的五十六个民族 Definition of Chinese: Biological parents are one hundred percent belonged to China's fifty-six nationalities