How does one pass 12-14 hour in flight
On a long flight, I would like to know the typical (is there such a thing?) behaviour of passengers. In the Economy section there is not much room or facility. But in the business and first class, what do they do?
e.g. Do they change into comfortable clothes to relax? Are they busy with their own personal activity (reading, sleeping, etc)or they mingle etc.?
I would like to know since I will be flying for the first time in business class, from LAX to Asia with a stopover in Switzerland.