1. Spaniards are a patriotic people, and jokes about the king and the country should be avoided. Similarly, it is not recommended to ask local Spanish residents whether they are from Basque country or Catalonia.

2. There are universal norms in developed tourist areas. For example, getting drunk in public in Spain and swearing in any language on the Avenue of Dolmorinos are disgusting. Friends and family kiss each other on the cheek, but a firm handshake is very suitable for Spanish men and male friends.

You can swim naked on the beach in Spain, but naked can only be done in those areas where nudity is allowed.

4. Don't and try to avoid offensive religious remarks, especially during Holy Week and Christmas.

Like most places in the world now, Spanish catering is standard and informal, but even in tourist destinations, basic table manners should be followed. If you happen to have dinner with some local people in a restaurant, you need to wait until everyone is seated, and you can't leave the table until everyone has finished eating. In Spain, tipping is not mandatory because most restaurants in Spain include service charges in their bills. In other words, it is normal for diners to leave a tip because of good service and quality, but this does not mean that you are obliged to tip the American proportional tip.