It would be best to have instructions on the screen, text on the wall is often missed. The make your own web page exhibit at the Tech had audio instructions which were effective and added another dimension in addition to written text. Instructions contain an element of operator error. Visitors may be focusing on the wrong thing or not applying proper attention and therefore miss important instructions. This can lead to inadequate results and visitor frustration.
Visitors see the buttons and screens and tend to leap before getting the full instructions.
Visitors often observe others rather than reading instructions. Different types of instructions include text, audio, and digital animation. It is important to provide visitors with the ability to move through the activity at their own pace and to move ahead if they want by skipping instructions. Serving repeat visitors is an issue. One idea for a policy consideration involves flex tickets to be used for a certain number of hours instead of on one day.