Some strategies that shops and cafes have used to attract customers include placing digital displays on walls normally used for exhaust, keeping attractive views or aquariums opposite open gates, installing welcoming dummies or playing welcome tunes, dedicating space for children so parents can shop comfortably, and placing televisions to occupy customers while they shop. However, closed doors may be better than open gates blocked by packets. Additionally, minimizing payment time to under ten seconds helps prevent customer impatience.