Make Menu Appear when user lowers Head

Hello.

I'm building a VR app for android devices.
I'm using google VR and unity 5.3.3.

I need to make a small menu appear in front of the camera, when the user lowers his head. But i'm facing some problems.

The first one:

I managed to make it apper in front of the camera like this:

if (!menuOn) {
MenuUI.transform.position = camaraH.transform.position + camaraH.transform.forward * distance;
MenuUI.transform.rotation = new Quaternion( 0.0f, cameraH.transform.rotation.y, 0.0f, cameraH.transform.rotation.w );
menuAnim.SetTrigger("Show");
menuOn = true;
}

But for some reason i cant make it always appear in the same spot related to the screen.
I want it always at something like 30degrees down the normal head position.


Second Problem:

I want the menu to move if the user rotates his head to either side. Just make the menu follow in the same line.

I hope i made clear what i need! :S

It seems like it's something really easy to do but i can't make it work!

Thank you.

Ez.

 

See if this helps:

 

I'm trying to find how to do this too, does any one know?