So when you stare at endermen (place crosshair on them and don't move it) Endermen should stare back at the player and stand still (while playing the creepy scream sound). This behavior is in java edition, but doesnt work in pocket edition.
They don't do that anymore, now they just start running and attacking immediately.
HOW TO REPRODUCE;
1. Be in survival mode
2. Stare at an enderman (place your crosshair on it)
3. Notice that Enderman doesn't freeze and stare back, but instead just starts immediately running at you. It also doesn't play the growl/scream sound effect.
Related issues
Comments


So is even the fact that they don't do their creepy growl/scream intended too? And how would you even know if it's intended?

It is intentional. If you look on the Minecraft wiki you will see that this is part of their behavior, due to the new mob AI.
Thank you for your report!
We're now tracking this issue at MCPE-43530, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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The behavior is intended as of their new AI.