How should i go about having an object have 2 clickable areas?

Maybe you can add two game objects as children to the main gameobject in question. If you want them invisible, disable the 2 new objects mesh renders but make sure they still have colliders. Then align each new object where you want your buttons to be.

Then use a ray that comes from the main camera position to the mouse pointer and monitor for mouse clicks. This should get you headed in the right direction.

 if ( Input.GetMouseButtonDown (0))
 {
     RaycastHit hit;
     Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
     bool didRayHit = Physics.Raycast(ray, out hit);
     if (didRayHit)
     {
         Debug.Log("You clicked " + hit.transform.name); 
     }
 }

Let e know if you need more specific instruction than that.