the name of "Faith" in Cantonese could depend on female or male. female: 阿信 (ar shun) or 信信 if little girl male: 阿誠 (ar shing) or 誠誠 if little boy

Faith is 信念 in Cantonese, it's not much used in a name that I am aware of though. Here are some resources for learning Cantonese: Cantonese character pronunciation dictionary http://arts.cuhk.edu.hk/Lexis/Canton2/ You can use this tools to listen sentences you input in Cantonese http://tdc.putonghuaonline.com/tools1.html

why do u choose this name? how can i pronounce to u ??i am a native Cantonese

your name pronounce [feiθ],and in dictionary translate 费思,but i name you 霏思in Cantonese. 霏---the falling of snow and rain 思---miss so 霏思 means for rain-snow's miss.(雨雪的思念) ,hehe,it is a beautiful image.

your name read like"face"write "feisi"(飞価）in Cantonese.