This in my opinion is the most normal out of all these countries. They will date in large groups and don't actually pair off until they are about 18. The girls will ask the boy to pay for the date and when they are paired off they will commonly go to the beach or barbecues.
So in most parts of Europe they go out in groups. But there is some specific parts in Europe that do things each a little different.
Finland: 30 or more teens will go to a movie together. That is a l o t!
Italy and Switzerland: They will go to slumber parties together. So they party and sleep at whatever house they are at . . .
Spain: Here teens join in a pandilla. It just a basic club of people with similar interest. So most of us would be in a writing pandilla :D. Theirs would most likely be something like hiking though. Their dating is now more like ours, they do it as one on one and split the bill.
Russia: Russian teens will meet downtown or by a fountain. In larger towns they tend to go to clubs and parties.
Central and South America
You can't date until 15 in South America. When they are 15 they date, like most teens above, in large groups. They go dancing on weekends or go out and eat.
You might be able to guess, dating here is rare. All most all of the marriages are arranged. It is already hard for boys and girls to meet since girls curfew ends at 7 and boys is at 11.
Japan and Korea
In high school the teens study (not surprised) instead of going out to dance and what not. The real dating begins when they are in college but only the boys can ask out the girls and they have to pay for the date.
Lastly there is Iran. Dating is forbidden. Boys and girls are separated their whole lives and then they are introduced which in most cases leads to marriage.
Hows that for dating. Most countries seemed to like to date in large groups, which kinda defeats the purpose. So I still prefer the American way.