How to make a character's hands rotate with the camera

Hi so i have been having this issue for a long time and every time i try and avoid it but i keep running into. Any help is appreciated!

 

Are you talking about the mesh for the player's hands staying on screen while you rotate a first person camera? Why not just make the mesh a child of the camera?

 

I have the FPSController prefab that comes with unity and i have a character that's a child of the FPSController but when i look around the hands only move left and right not up and down and if i make the character a child of the camera the whole character rotates.