Labor Day is seen as a day to honor workers. Parades are held, celebration with picnics and barbeques are also common. Many people also celebrate Labor Day as the end of summer and the last holiday before the start of the new school year. Labor Day is the end of summer holiday (while Memorial Day is the start of summer holiday).
As the first Labor Day celebration in 1882 was held as a demonstration to outline the needs of the American workers, throughout the years the focus has been more on celebrating the achievements of the American worker and less of a protest to current working conditions.