The word that characterises ACL 3.8 is all. Most people are determined to cover all of the space or use all of the objects. The difference between ACL 3.6 and 3.8 is that attention tends to fade away within ACL 3.6. Within ACL 3.8, their attention seems to be focused on getting done, which they define as using all of the objects or covering all of the space within the surface in front of them. Be careful about the number of objects and the size of the paper you give them because they are apt to resist giving it up until they are satisfied that they are done.