Why do waiters in restaurants stand behind customers and put their hands in front of them?

Personally, putting your hand in front means modesty, and putting it behind means confidence ... because when people show respect, their bodies will lean forward and tend to be respected, and there is another meaning to show concern for this object (usually when we are listening attentively to others, our bodies will unconsciously tend to the speaker, because you care about the speaker's information, the degree of inclination and the distance between them generally indicate concern for information) ...

Because you are a customer, you naturally need attention and respect, so you lean forward and tend to the customer.

Because the body leans forward, the hand will naturally droop, so put it in front … this is my personal wild guess …! ! !

In the same way, because the body leans back, the hand is naturally thrown back, so the hand is put behind … Of course, this is also my personal guess! ! !

If you want to analyze it, I think putting your hands behind your back is a sign of confidence (I guess). Because there are barriers between people in general, especially strangers. Hands can be used as a tool to protect yourself, so blocking the front with hands can be interpreted as "distance", which is the product of consciously protecting yourself in a strange environment ... For example, the gesture of crossing your hands on your chest is generally interpreted as "protection", "refusal" and "defense", which is a relatively alert and repulsive action. ...

Therefore, when we take off our "shield", that is, the hand that stands in front of us, it is generally considered to be disarmed. Putting your hands behind your back and showing your face openly is either a person who is very confident that he can beat his opponent (that is, a "win" mentality, or a "you can't do anything about me anyway" mentality) or a stupid complacency. ...

About standing behind … Personally, standing in front plays a "guiding" role and standing behind plays a "auxiliary helping" role. For example, if the housekeeper takes you to your room, she will stand in front of you and show you the way, and the lady at the shopping point will stand behind you and explain it to you when you look at the goods ... something like this. ...

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The above only represents personal and unprofessional views ~