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

"When visiting Clearwater Bay, it's important to respect local customs and traditions to avoid any cultural faux pas. Avoid discussing sensitive political topics such as the relationship between Hong Kong and mainland China, as it can be a contentious issue. In Hong Kong, it's considered rude to point with your index finger, so try to use your whole hand instead. Also, avoid touching people's heads as it's seen as disrespectful, since the head is considered the most sacred part of the body. When using chopsticks, don't stick them vertically into your food, especially rice, as it resembles a ritual for the dead. Also, don't tap your chopsticks on the edge of your bowl, as it's associated with begging. If you're invited to someone's home, it's customary to bring a gift. However, avoid giving clocks as gifts because the word for 'clock' sounds like the word for 'death' in Cantonese. When it comes to dress code, Hong Kong is quite westernized, but it's still important to dress modestly, especially when visiting religious sites. Lastly, remember to always be polite and patient. Hong Kong is a bustling city and things can get hectic, but locals value good manners and respect," mentioned another expat when asked about moving to Clearwater Bay, Hong Kong.