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

"It is important to be mindful of cultural norms when visiting Panadura. It is important to dress modestly and to avoid public displays of affection. It is also important to respect religious sites and to avoid taking photographs without permission. Additionally, it is important to be aware of local customs and to avoid making jokes or comments that could be seen as offensive. Finally, it is important to be respectful of local people and to avoid making assumptions about their culture," mentioned another expat when asked about moving to Panadura, Sri Lanka.