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

"It is important to be mindful of cultural norms when visiting Penang. It is considered rude to point with your index finger, so it is best to use an open hand when gesturing. It is also important to dress modestly, especially when visiting religious sites. Additionally, it is important to be respectful when taking photographs, as some people may not want their picture taken. Finally, it is important to be aware of the local customs and traditions, and to be respectful of them," remarked another expat who made the move to Penang, Malaysia.