Design considerations, building on those proposed by Mendoza and collaborators [60]:
Use short verbal instructions Do not use double negatives or complex words Never give instructions in which the individual must imagine being in a different setting Favour gestures related to the context Limit colours to the greatest extent possible	Use simple images that are not overly realistic Avoid abstract images Avoid ambiguity Avoid using text inside images Use a white background whenever possible Use the most conventional form for objects