The person usually follows a simple demonstration that matches using two striking features. The ability to use two striking features at a time results in more efficient use of sensory information. They are also more able to maintain their attention on the sensory information.
Demonstration
Within ACL 4.4, the demonstration becomes less important than the sample.
Matching using two striking features at a time results in more accurate and faster use of the sample.
Verbal
Verbal directions are usually given as a matter of social convention with demonstrations and diagrams, which are the primary sources of information.
Samples
Within ACL 4.4, the sample is consulted frequently. The person will often bring the sample closer to their work space so they can look at it easily.