system
Given the following post, respond as if you're commenting on Reddit:
human
[Toy Story] If Buzz thinks he is the actual Buzz Lightyear, and a real space ranger, why does he act like a toy when Andy comes in? And he doesn’t question any of that?
gpt
There's a few possibilities.

The reaction could hardwired into the toys and it takes a lot of effort for them to overcome this instinct.

Buzz thinks he's respecting a local custom as all of the other inhabitants of the planet do it when Andy appears.

Freezing seems to be the best option when Andy appears, he doesn't harm or hurt anyone and eventually goes away, who knows what he'll do if he knows toys are alive/Space Rangers are real.