Singapore as a model city: efficient, modern, energetic
The city is used to diversity so you won't get as many stares compared to many other metropolis in Asia. The public transport is very orderly and convenient to use, with understandable instruction in English in each bus stops (unlike Tokyo or Seoul bus stops, for example). It has little to offer when it comes to outdoor/nature, but otherwise everything from museum to malls to the airport are very clean, modern, streamlined. Expect to hear a lot of Chinese language being spoken.
Insider Tip:Prepare for the sun and humidity by escaping to indoor malls or museums at noon. Not everyone can speak or listen to English well, especially older citizens, but they're not rude, at least from my personal short trip experience. Prepare to bleed money, since it's not cheap place to visit and live in when compared to its neighbors Indonesia and Malaysia.