Within ACL 4 Low, attention is paid to doing an activity with striking properties. Their behaviours are to conform with a sample to do an activity and to name the activity. They usually will do any activity that they can do and be glad to have something to complete in around 45 minutes. However, their time to completion is usually twice as long as normal.
An activity contains at least three actions to form a sequence (steps) to produce a pre-determined and consistently followed goal. The goal is a concrete sample with striking features. The sample must arouse the person's attention and interest them because the person must agree to do the activity. If not, the possible reasons are cannot or will not, which must be clarified to find an activity that they can and will do.