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

"It is important to be aware of cultural differences when visiting Albania. It is important to be respectful of local customs and traditions, and to dress modestly. Avoid making negative comments about the country or its people, and be aware that Albanians are very proud of their culture and language. It is also important to be aware that Albanians are very hospitable and generous, so it is considered rude to refuse an offer of food or drink. Additionally, it is important to be aware that Albanians are very religious, so it is important to be respectful of religious sites and to avoid discussing religion in public," said another expat in Albania.