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

"In Macao, it is important to be aware of the local customs and cultural norms. It is best to avoid making disparaging remarks about the Chinese government, as this is considered disrespectful and offensive. Additionally, avoid pointing with your index finger, as this gesture is highly inappropriate. When interacting with local people, it’s best to show respect by greeting them with a slight bow instead of a handshake. When dining out, avoid displaying your chopsticks vertically in your bowl, as this is a funeral tradition and is seen as rude and offensive. It is also best to keep your voice low and courteous when speaking in public locations," remarked another expat who made the move to Macao, China, China.