Employees in star-rated hotels smile to resolve conflicts. Why can a smile resolve conflicts?

Smiling service can bring a good first impression. In service work, the first impression is the feeling formed by observing the appearance, speech and behavior of service personnel. Although the first impression is short-lived, it is very influential, because most customers may not have a chance to get to know you better, but only once, smiling service can bring a good first impression, so the impressed customers will naturally not make trouble, which can resolve many unnecessary contradictions.