The layer must be selected and the shape must also be selected and the selection tool (v) must be active.
Sorry for the double posting here and on the Cow.
I tried that Rick. I still couldn't see the gizmo. After some experimenting, it seems that both the shape and fill need to be contained a Group object for the gizmo to appear.
If I create a shape layer and add a fill, there's no gizmo. But if I also add a Group object and add the shape and fill. The gizmo appears. Take them out of the group... no gizmo.
AE CC2014.2 / Mac OS X 10.9.2