During our first travels, we used to purchase a tour package that included city tour. We would be in a bus or a van and the driver would bring us to noted places in that city. We noticed that countries are almost the same when it comes to transportation - there's a bus or taxi stop and if they cannot understand English then we get a note from the hotel concierge. In our next travels abroad, we tried our luck with public transport. So it's the MTR, i.e train in Hongkong for the first try. Quite easy as long as we study the map that showed the train stations. With buses, it's practically the same. It's a lot cheaper to roam around on our own instead of a guided tour.