you will have an awesome time in Hong Kong, its a very easy introduction to Asia - you will not find any communication problems as english is widely regarded as the first language in the city precinct... as for food you'll get whatever you want, check out - 
http://www.discoverhongkong.com/eng/...arch/index.jsp to get some ideas... but be sure to at least try some local food... a good "touristy" night out would be to head out on a floating resatraunt, great views of the city and you'll get an awesome seafood meal. The new Disney Land has also just opened there, so probably worth checking out.