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

"When visiting Ioannina, it's important to respect the local customs and traditions to avoid any cultural faux pas. Here are some tips: Avoid discussing sensitive topics such as politics, religion, and the country's economic situation. Greeks are very passionate about these subjects and it can lead to heated debates. Do not disrespect the Greek Orthodox Church or its rituals. Religion plays a significant role in Greek culture and any negative comments or inappropriate behavior in churches can be seen as highly disrespectful. Avoid making the 'moutza' gesture, which involves extending all fingers and presenting the palm towards someone. This is considered a serious insult in Greece. Do not rush or pressure Greeks during social or business interactions. Greeks value personal relationships and prefer to take their time in conversations and negotiations. Avoid wearing revealing clothing when visiting religious sites. Modest dress is expected in these places, with shoulders and knees covered. Do not refuse hospitality or gifts. Greeks are known for their hospitality and it's considered rude to decline their offers. Avoid littering or damaging historical sites. Greeks are proud of their cultural heritage and expect visitors to respect their monuments and natural environment. Do not assume everyone speaks English. While many Greeks do speak English, especially in tourist areas, it's polite to learn a few basic Greek phrases. Avoid being overly loud or boisterous in public places. Greeks value decorum and good manners. Lastly, do not forget to tip. In Greece, tipping is customary and seen as a sign of good manners," remarked another expat in Ioannina, Greece.