system
Given the following post, respond as if you're commenting on Reddit:
human
[ATLA] Could someone prevent their face from getting stolen by Koh the Face Stealer by simply wearing a mask when talking to him?

* If Koh the Face Stealer will only steal someone's face if he can get a visible facial reaction out of them, couldn't someone just wear a mask in order to prevent him from being able to see their potential facial reactions?
gpt
Remember, he's under no *obligation* to talk to you. You can go faster then any professional runner by showing up to the marathon on a motorbike, but you won't win, you'll cancel the race.

He can only steal your face if he sees you express emotions, yes, but he's not stupid. If you show up wearing a mask or something similar, he might just leave.

If you're lucky.

If you're unlucky, he can't attack *you*, but given you're already bending the rules then there's nothing saying he can't say something shocking and then quickly take off your mask.