The slaver grows increasingly insulting and condescending - which makes Missandei struggle to interpret politely.Daenerys then adds she also wants to buy the hundreds of young men still in training. The Good Masters agree, but Daenerys also asks for Missandei as a gift and a show of good faith for the upcoming transaction. Daenerys asks the young slave for her name and if she has any living family, but she says she does not.A few minutes later, when Daario is selected as the champion, Missandei makes complimentary remarks about him, which Daenerys brushes off.Missandei is revealed to have been teaching Grey Worm the Common Tongue.That night, as Daenerys bathes, she is surprised to learn that Missandei speaks no fewer than nineteen languages.
Missandei speaks nineteen languages including High Valyrian (her favorite), the Low Valyrian dialect of Slaver's Bay, Dothraki, the Common Tongue of Westeros, Missandei acts as an interpreter between her master Kraznys mo Nakloz and Daenerys Targaryen when she lands on Astapor with the intent to buy Unsullied.
Missandei, sporting a new dress to match Daenerys's outfit, is present when Kraznys and Daenerys conduct their exchange.
She interprets their exchange until Daenerys fluidly begins issuing orders to the Unsullied in perfectly accented Low Valyrian, at which Missandei stares in shock.
She does not simply translate, but offers Kraznys commentary on Daenerys's words and diplomatically leaves out Kraznys's insults to the Khaleesi.
Daenerys meets with Kraznys and other Good Masters and announces her intention to buy all of the eight thousand Unsullied for sale, but Kraznys says she cannot afford them.