The teenagers of the UES have a reputation for being very posh, stuck up, and wealthy. There are many infamous private schools on the UES, including Brearley, Chapin, Dalton, Spence, and Marymount. Brearley and Chapin have a huge rivalry. However, contrary to popular belief, the school called Constance-Billard, from the Gossip Girl series, was invented for the series, and does not exist in the real world.
girl 2: I go to The Brearley School, on the UES.