Background Information Stores use free samples as a"come-on' in competing for customers. If a store provides free samples of some of their products, it is likely that more people will shop there Samples, usually of new food and drinks, are given with the understanding that if you like them, you will buy them. It is not socially acceptable to continue to sample the same product time and time again without making a purchase.Background Information Stores use free samples as a “come-on” in competing for customers. If a store provides free samples of some of their products, it is likely that more people will shop there. Samples, usually of new food and drinks, are given with the understanding that if you like them, you will buy them. It is not socially acceptable to continue to sample the same product time and time again without making a purchase