This is, in a sense, the most useful professional preparation she could have had for the experience of Gossip Girl. She arrived at her first series regular role not as a newcomer who needed to learn how sets worked and how productions functioned but as an experienced professional who had already seen enough of the industry’s mechanics to understand what the experience was likely to be.
## Manhattan as Costume: Shooting the Upper East Side
The specific geography of Gossip Girl’s production was Manhattan, though not exclusively the Manhattan that Blair Waldorf’s character inhabited. The show shot on location in the city in ways that layered the real Manhattan onto the fictional version — real buildings and real streets and real neighborhoods became the backdrop for a version of the city organized around the social and economic hierarchies of a small group of extraordinarily privileged teenagers.
The visual language of the show’s Upper East Side was constructed through careful production design, wardrobe, and location choices. The exteriors of the Met steps, where Blair held court and dispensed social judgment, were real. The interiors of the apartments — enormous, full of art, furnished with the specifically curated aesthetic of people who had always had money and had had it long enough that they no longer needed to signal it very loudly — were sets designed to evoke a world that exists in Manhattan but that is not accessible to the show’s camera operators by right of address.
For an actress who had grown up in a series of inexpensive apartments — the West Village, Inwood, Hollywood near La Brea — spending her working days in the constructed simulation of that world had a specific texture. She has not described this texture in detail in her interviews, and speculating about it would be exactly the kind of invented inner life that this article has committed to avoiding. What is documented is that she was aware of the contrast, and that she chose, in her professional practice, to separate the character from herself rather than to merge them.