What cultural faux pas should I try to avoid making in Clementi?

"In Clementi, it's important to respect the multicultural society, which includes Chinese, Malay, and Indian communities. Avoid making any derogatory comments about any race or religion. When using public transportation, do not eat or drink as it's prohibited and can result in a hefty fine. Avoid littering as Singapore is known for its cleanliness and strict laws against littering. Do not chew gum in public as it's banned in Singapore. When visiting religious sites, dress modestly and follow the customs of the place. For instance, remove your shoes before entering a mosque or a Hindu temple. Avoid pointing with your foot or touching someone's head as both are considered rude. Do not jaywalk; always use designated pedestrian crossings. When dining, wait to be seated and do not start eating until everyone has been served. Avoid discussing politics openly, especially anything that could be seen as criticism of the Singaporean government. Always use your right hand for eating or giving and receiving objects, as the left hand is considered unclean in many Asian cultures. Remember to respect the elderly and give up your seat for them on public transport. Lastly, always ask for permission before taking someone's photograph," remarked another expat in Clementi, Singapore.