Germans are typically perfectionists and seem to expect this from everyone they come in contact with.
Avoid doing anything that may cause you or your Thai friends to lose face. Respect must be given to those of higher social status, and to elders.
When Russian people talk about movie theatres, they will usually say "cinema"; if they talk about "theatres", they mean live performances.
During Soviet times there was a well developed system of community work and in every group (class at school, department at work etc) would be also a person responsible for sport, education, political information of the group etc.
Keep in mind that everyone is an individual and there is no sure fire way to know how each will react to different circumstances.
German Men Dont Flirt as Much Again, it is important to emphasize that there are probably a handful of Casanovas in Germany that would put the most avid ladys man to shame.