Living in Singapore (being an atheist), I can attest to that. The state Mantra here is, do not discuss religion, do practice what you feel like, but leave others alone with it. The Malay community being Muslim has been pretty modern (if compared to others) and there is a serious effort here, to make sure there are no religious tensions. Anyone who decides to stir trouble, be it religious or racial, is in for a court hearing with prison.
The country knows how volatile such a situation can be.The advantage here is, that nobody really cares what you believe as long as you leave the rest alone. It's pretty liberating. I can see Buddhist and Taoist temples, christian churches, Hindu temples, Mosques and even a small Jewish community & Sikhs running around. Very diverse indeed.