Control > Look/Unlook
[p]
Creates a hierarchy which forces one object to always face toward another
object. If such a hierarchy has already been established, this tool
breaks the hierarchical grouping of objects so that they operate independently
once again.
1.
Select the object(s) to be looked at.
2. Command Shift + select the target object. This object should be highlighted
in green. If it isn't, deselect everything and go to step 1.
3. Click Control in the main tool palette.
4. Click Look/Unlook in the lower tool palette.
5. To Unlook, hold option down click Look/Unlook in the lower tool palette.