And in modern Britain—a restless, exhibitionist place—Mr Marr's Queen Elizabeth stands out for her discretion, and for understanding that symbols are “better off keeping mostly quiet”.
Guests wore yellow—the men in necktie form, unless particularly exhibitionist—and the resulting photographs were distributed in publications from the New York Post to Harper's Bazaar.
So people who, for example – I don't know, take off their clothes in the middle of a shopping center, that could be an exhibitionist, somebody who wants to have other people pay attention to them.
Pamela is saying that the women that David has been looking at are also exhibitionists because they have " teeny tiny bikinis." A " bikini" (bikini) is a small, " two-piece" we would call it, bathing suit for women.