Use it yourself first and show the effect to others. Strangers' market is the biggest market, and acquaintances' business is difficult to do.

Broadly speaking, promotion is an activity that the information sender uses certain methods and skills to make the information receiver accept the sender's suggestions, opinions, wishes and images through communication, persuasion, induction and help.

In a narrow sense, promotion refers to the promotion of personnel in enterprise marketing mix strategy, that is, the process in which enterprise salespeople confirm and activate customers' needs through skills and means such as transmitting information and persuasion, and meet customers' needs with appropriate products, so as to realize the exchange of interests between the two parties.