The present invention relates to a method and an interactive system (1) for ordering one or more goods or services in a public commercial concern. The method comprises the steps of providing a menu comprising a list of goods or services, a set of characteristic data items for each good or service of said menu; providing a set of pictures and/or a set of videos for each good or service of said menu. This method is characterized by the steps of: storing said menu, said data set, said picture set and/or said video set into a memory (2B) of a computer device (2) for them to be read by a microprocessor (2A) of said computer device (2); selecting at least one good or service of said menu; associating said at least one good or service with at least one corresponding video of the video set and at least one corresponding characteristic data item of the characteristic data set and/or at least one corresponding picture from the picture set; generating for each good or service an information flow (2E) comprising a predetermined time combination between said at least one corresponding video and said at least one corresponding characteristic data item and/or said at least one corresponding picture; and displaying on a display screen of said computer device said information flow (2E). The information flow (2E) is further displayed in such a manner that the corresponding video of the video set and the corresponding characteristic data item of the characteristic data set and/or the corresponding picture of the picture set are displayed for an interval of time corresponding to a first (t 1 ), a second (t 2 ) and/or a third (t 3 ) predetermined period of time respectively.
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