Named several rules that apply in all countries of the world.
As the journalists noted, first of all, one cannot argue with the authorities anywhere. We are talking not only about the police but also about customs officers and border guards. You should not contact them, because in any case, a tourist has fewer rights than an authorities representative.
Another rule is keeping your distance. In many countries, he is treated very jealously, so wherever you are, you should stay away from other people.
It is also forbidden to take photos of people without their consent. In many countries, this is prohibited by law, and we are talking even about passers-by. In some countries, it is not allowed to photograph animated objects, such as administrative buildings.
Restraining active gestures is another important rule. In some countries, this is considered a sign of aggression, and the meaning of gestures is also different. For example, the traditional “thumbs up” in Europe in Turkey can mean belonging to a non-traditional orientation.
Also, do not collect a full plate of various dishes and undereat. In many countries, it is not customary to do so. It is better to go to the buffet table several times than to take everything at once and mix it.