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

"It is important to be aware of the cultural norms in Moldova and to respect them. It is considered impolite to be late for social engagements, so it is important to arrive on time. It is also important to dress modestly and to avoid wearing revealing clothing. It is also important to be aware of the local customs and to avoid discussing sensitive topics such as politics or religion. Additionally, it is important to be respectful of the local language and to avoid speaking English or any other foreign language in public. Finally, it is important to be aware of the local customs and to avoid touching people or objects without permission," said another expat in Moldova.