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

"When visiting Faro, it's important to respect the local customs and traditions to avoid any cultural faux pas. Here are some tips: Avoid discussing politics, religion, and other sensitive topics unless you are very familiar with Portuguese culture and history. These topics can be very personal and may lead to heated debates. Don't rush your meals. In Portugal, meals are a time for relaxation and socializing. It's considered rude to rush through your meal or to leave immediately after finishing. Avoid being loud or boisterous in public places. Portuguese people are generally reserved and appreciate quiet and calm behavior. Don't expect shops and businesses to be open all day. Many businesses close for a few hours in the afternoon for a siesta. Avoid wearing beachwear or revealing clothing in the city or in churches. This is considered disrespectful. Don't forget to say "please" (por favor) and "thank you" (obrigado if you're male, obrigada if you're female). Portuguese people are polite and appreciate good manners. Avoid being overly punctual. It's common in Portugal for people to arrive a little late for social gatherings. Don't tip excessively. In Portugal, it's customary to leave a small tip, but not the 15-20% that is common in some other countries. Avoid calling the Portuguese language "Spanish" or comparing Portugal to Spain. The Portuguese are proud of their unique culture and language. Don't forget to greet people with a handshake. It's also common for close friends to greet each other with a kiss on both cheeks," remarked another expat who made the move to Faro, Portugal.