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

"It is important to be respectful of local customs and traditions when visiting Negombo. It is considered rude to point with your finger, so it is best to use your right hand or your whole hand when gesturing. It is also important to dress modestly, especially when visiting religious sites. It is also important to be aware of the local customs regarding public displays of affection, as these may be seen as inappropriate in some areas. Additionally, it is important to be respectful of local religious beliefs and not to criticize or make fun of them," mentioned another expat when asked about moving to Negombo, Sri Lanka.