Making humanoid NPC rotates in X and Z?

I tried changing the rootpart's rotation and CFrame and even used body gyro, body angular velocity but the humanoid just won't rotate. How do people make humanoid rotates like the admin fly scripts?

EDIT: I think I get why now, it's because the humanoid is loading animation and whenever the NPC is playing animation, it will keep that animation and won't rotate. So if I want to rotate them, I have to not let them play animations (I've tested this before)