With the Chinese control of Hong Kong, Mandarin is being spoken more often than before.  Chinese and English are the two official languages with Cantonese officially recognized, as it is the most popular dialect.  

English is taught in schools and is the second official language in Hong Kong, thus making communication with visitors easier than in other Asian areas.  Most signs, among other things, are written in both English and Chinese, making it a little easier for foreigners to get around Hong Kong.

Use your international mobile phone rental to find a translation service near you.