Why is the smiling service of toll booth service personnel turned into a fake smile?

Because the smile is too stiff, but there is nothing I can do. Smiling service is a job requirement for toll collectors, but facing thousands of cars every day, you need to keep smiling and charging when you are on duty. Even robots will laugh until their parts are hot, let alone flesh and blood people.

It is possible that when the toll collectors just took up their posts, they will smile at the passing drivers every day according to the requirements of the system, but the passing drivers may not always understand. Sometimes, they may be greeted with a cold face or even be urged by bad words because they are a little slow, or they may be ridiculed or say something unpleasant because they think it is arbitrary charges. There are so many drivers passing by that all kinds of people have them.

So when I pass the toll booth by myself, I respond with an understanding attitude, respond to the toll collector with modal particles such as "hello" and "thank you", and occasionally face the toll collector with a smiling face, because I also know that it is not easy to repeat this mechanically every day and smile to a stiff expression.

In this "fake smile" video, the toll collector's actions are coherent and neat, and he looks like a skilled old employee. He may have a stiff expression when facing all kinds of cars every day. When facing the car that took the video, the action from getting the card to giving the ticket is very fast at first, which does not delay any time and does not affect the efficiency of traffic. It is reasonable to say that as long as the charging process can be completed so quickly, it will be enough without delay. As for the service of smiling, I think it's all secondary, because even if you smile from beginning to end, but the process of charging is unfamiliar, and if you don't get it done after waiting for half a minute, such a smile is meaningless.