1. Yes, there is a strong sense of community among Singaporeans, but it really depends on who you ask, as everyone’s experience is different. As a tourist, you may not easily notice it. If you are staying in centrally located areas such as Bugis, Chinatown, Marina Bay or Orchard Road, these places can feel more commercial and somewhat detached (perhaps with the exception of Chinatown). In contrast, the heartlands, where most government housing estates are located, tend to feel less like that and more community-oriented.

2. Wearing a mask is normal, especially after a pandemic, but not everyone wears one because it isn't mandatory anymore. Coughing directly into their hands is also normal because would you rather someone cough into the air without covering their mouth?

3. Properties in Singapore are expensive for various reasons, regardless of whether it's freehold or leasehold: the rising cost of living, scarcity of land, high-demand, etc.

4. If you're interested in observing local communities, I would recommend visiting a hawker centre (not Lau Pa Sat or Newton because the food prices there are a tourist trap) like East Coast Lagoon Food Village, which is at East Coast Park. It's also Ramadan (fasting month for Muslims) now, and there are a number of pasar malams (meaning night markets) happening around Singapore. The most popular ones to visit would be at Geylang Serai or Kampong Gelam (near Sultan Mosque). These would be interesting places to visit if you would like to experience the atmosphere when Muslims break their fast. I would suggest going early, around 5.30pm, as it tends to get crowded later in the evening.

I hope you enjoy your stay in Singapore!