First, participants were asked to go through the list of impressions carefully. When ready, they were asked to categorize all products based on packaging design with the aid of the list with impressions. The impressions were presented to the participants in random order. The participants had the option to describe a group with more than one impression. Further, they had the opportunity to categorize one or more samples as ‘different’ when categorizing seemed impossible. At the end, the participants had to describe why the packaging samples have been categorized as such.