In Portugal, yawning and stretching in public is not common. The only things considered more uncultured here are questioning the country's historical greatness and comparing the Portuguese to the Spanish. Lisbon, like the rest of Portugal, is fairly safe, but beware of pickpockets, and remember to lock your car.
Exercise caution when considering purchases of jewelry, appliances, and other expensive items without proper documentation, as they may be stolen. Buying stolen goods in Portugal is a serious offense, even for uninformed tourists.
Be vigilant when walking the streets at night, as you may encounter drug dealers who are quite persistent. However, it's important to note that instead of drugs, the bags they offer may contain substances like crushed bay leaf or chalk. Stay cautious and avoid engaging in such transactions.
