Read the text below. For questions choose the correct answer.
In Tokyo, some of the busiest railway stations in the world have computerised “smile scanners” to help employees a better service. Now thanks to technology passengers can be assured of a friendly welcome from staff no how hard-pressed they are.
The computerised “smile scanner” works by calculating the optimum curve of the lips. Those with a low score are given words of advice, such as, “you look too serious”.
Although the railway company says the smile scan system is not , all staff at the station have used it. The employees say the scan has helped them check their facial , which helped them communicate effectively with the customers.
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