system
Given the following post, respond as if you're commenting on Reddit:
human
[The Walking Dead] why did the little girl zombie from the first episode pick up her stuffed animal?

I JUST started watching this show and I couldn't figure out why a mindless zombie would have the urge to pick up a toy.
gpt
[META] Everything in the "rules" of The Walking Dead is based on the rules of the Romero zombie films* zombies. How death and resurrection works, how zombies behave, how to kill them, etc. In Romero's films, it's shown beyond any shadow of a doubt that zombies retain shadows of memories from their past lives. They don't randomly roam- they gravitate towards places that they spent time in while they were alive. They vaguely mimic motions and behaviors of their past lives. They reach for, investigate, and occasionally manipulate objects that they remember. There's a gun-loving zombie in Dawn; he doesn't know how to use guns, but he knows he likes them, and wants them. Zombies wander the shopping mall like they did when they were alive. A hare krishna zombie still carries his beads. In Day, Bub remembers how to use a tape player for music. He also remembers- unprompted- to salute a superior soldier, as he himself was a veteran. He remembers how to check and prep a pistol. In Land, a lawncare worker zombie paces a lawn mimicking his old patterns. A gas-station worker zombie stands at the ready with nozzle in hand. Band member zombies arrange on bleachers with their instruments.

* Night of the Living Dead (1968), Dawn of the Dead (1978), Day of the Dead (1975), and Land of the Dead (2004) at minimum; Romero's "reboot series" of Diary of the Dead (2008) and Survival of the Dead (2011) are of debatable canonicity. Survival definitely is a sequel to Diary, but whether they're a true reboot or just "sliding timescale" new entries which take place concurrent to previous films is unknown.