The macaws, including Jinzhi, are all very intelligent!
They learn to speak quickly and, even if they don't understand the exact meaning of their words, they can comprehend the context in which to use them.
Young couples often come to the bird pavilion for dates, disappearing into quiet corners to be affectionate with each other, oblivious to whether there are any birds watching.
Unbeknownst to them, their intimate behavior was observed by Jinzhi and Jingwen, who were themselves on a date; they found the human couple's tender words extremely interesting and secretly took note.
Eventually, they even developed a hobby of specifically seeking out couples to blatantly eavesdrop and learn.
As couple after couple visited, they learned quite a few words of affection, and now they liked to throw in a phrase or two while being affectionate.