Certainly short pants and tank tops are not appropriate when visiting churches in Italy and Vatican City. However, "Holland" and "Netherlands" are not synonymous and it is considered a lack of education rather than ignorance not to know this.Portugal is a south European nation, the Portuguese were always a very open society and most are well traveled and see themselves an international nation, there are more Portuguese outside Portugal than residing within its borders.While Europe contains a wide variety of social traditions, it is also (excluding Russia) relatively compact, well-traveled and urbanized compared to many other continents or cultural areas.As such many expectations regarding etiquette are shared across Europe.The age issue is clearly observable in countries that had have passed through some historical event, a war, revolution of a change in political systems, like previous satellites of the ex-USSR where there is a huge generational divide between those who grew up in the 'Communist era' and those who did not, the same is also valid to those under Fascist regimes, these deep social changes have an impact in what is deemed appropriate behavior in a society.You can call any emergency number (112 or local emergency numbers) from any phones even mobile phones which are protected by a password.French manners were established by the ecclesiastical authorities in the Middle Ages, by the monarchy from the 15th to the 17th centuries, then by the aristocracies, bourgeoisie and political classes in the modern era.These codes helped these classes successfully exert power.
For example, a Dane will prefer direct speech while a Finn will tend to get hahalold.
It is your host's responsibility to serve you a green salad in pieces small enough so you do not need to cut them".
Whether drawn by the relics of Ancient Greece or the scenes such as these boats docked on Samos Island, visitors to Greece should be aware of some specific ways in which Greeks indicate "yes" and "no".
The basic politeness is to finish every plate (except decoration vegetables) and finish your glass of wine.
However, it is always the host's responsibility to adapt himself/herself to your taste and to make you feel as comfortable as possible.