Look At

This function allows you to make an object, camera, or light force itself to remain pointed at another object.

Using:

1. First select the object you want to look at the other object.
   
   
2. Click on the look at button(Tools/Object Tools) or on the top Tool Bar.
   
   
3. Click on the object you want to look At.
   The first object will instantly align itself with the other object and will remain looking at the other object even when either of them have moved