Yes, leaving food on your plate can be seen as wasteful or disrespectful, especially in someone's home. Try to take smaller portions if you're unsure about finishing.

It depends on the church—some allow photography without flash, while others prohibit it entirely. Always look for signs or ask permission before snapping pictures.

These are 'couvert' items, and while they seem complimentary, you'll be charged if you eat them. Politely decline if you don't want them to avoid extra costs.

In coastal areas, shorts are fine, but in cities like Lisbon or Porto, locals tend to dress more formally. Opt for lightweight trousers or skirts to blend in.

Buy a rechargeable Viva Viagem card in Lisbon or Andante card in Porto—they offer discounted fares compared to single tickets and work on buses, trams, and metros.

Festas are local festivals, often tied to saints' days or harvests. They're a great way to experience authentic culture, but expect loud music, fireworks, and late-night celebrations.

Yes, tap water is safe to drink, but locals often prefer bottled water. If you're eco-conscious, bring a reusable bottle and refill it.

Dinner is typically eaten after 8 PM, often closer to 9 PM. This is due to the warm climate and cultural preference for late-evening socializing.

It's illegal to urinate in the ocean, and fines can be steep. Always use public restrooms or facilities at beaches.

Visit a 'casa de fado' in Lisbon's Alfama district, but avoid touristy spots with high prices. Look for smaller venues where locals gather.

Stay in locally-owned guesthouses, eat at family-run restaurants, and avoid overcrowded tourist hotspots like Sintra during peak hours.

Physical proximity is a sign of friendliness and engagement. Don't step back—it might be seen as cold or distant.