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

"In Novena, it's important to avoid discussing sensitive topics such as politics and religion, as Singapore is a multicultural society with diverse beliefs. Avoid littering, as Singapore is known for its strict cleanliness laws and heavy fines for littering. Do not chew gum in public, as it is banned in Singapore. Avoid pointing with your foot or touching someone's head, as these are considered disrespectful in Asian cultures. Do not eat or drink on public transportation, as it is prohibited and can result in fines. Avoid being overly affectionate in public, as public displays of affection are generally frowned upon in Singapore. Do not jaywalk, as it is illegal and can result in fines. Avoid tipping, as it is not a common practice in Singapore and can sometimes be seen as insulting. Do not rush onto public transportation before others have had a chance to exit, as this is considered rude. Avoid speaking loudly in public places, as this can be seen as disruptive and disrespectful. Remember to remove your shoes when entering someone's home, as this is customary in Singapore. Do not interrupt or speak over someone, as this is considered rude and disrespectful. Avoid making negative comments about the country or its leaders, as this can be seen as disrespectful and can even lead to legal trouble," said another expat in Novena, Singapore.