When Samantha is walking down the street, a man behind her is seen taking a photo of her rear. (Extras can often be seen staring at the camera, because they are non-paid New Yorkers and they film in the middle of busy streets.)
The Book cover has Carrie naked but the title of book is cover her Breast and her neither regions, The Book people could had given Carrie underwear would been okay with Carrie but they had to make her naked for dramatic pause.
Carrie mentions she make sure she puts clothes on before she leaves her apartment so Lily and Courtney could just they wanted her in her birthday suit.