Germans are typically perfectionists and seem to expect this from everyone they come in contact with.
Further, if you do something wrong or not by their standards they normally have no problem ridiculing you and telling you what an idiot you are.
One difference that I found particularly interesting is that young, college-age people in German tend to stay in a relationship for a longer period of time as compared to what I have observed in the U. During the orientation class I took in September, our teacher told us that many young Germans will date their significant others for quite a long time, often up to four or five years, or more. who have been dating the same person for an extended period of time, I would say that I know more people whose relationships last a few months, or sometimes even just weeks, rather than several years.
Our teacher also mentioned that at the University of Tuebingen, the university where I am studying, most students are involved in a long-term relationship. So I was somewhat skeptical to hear that the norm in Germany is to be in a long-term relationship lasting for multiple years.
They are not conditioned to flirt with women randomly and tend to be quite rigid.