Attract others' attention, attract others' attention. I think this situation is that people's vanity is at work. Both the giver and the receiver of business cards are influenced by their vanity. The giver is afraid that the other person will look down on himself when receiving the business card. The person who receives the business card hopes that the other person is an important and high-ranking person, so that on the one hand, it is easy to talk about things, on the other hand, it seems that he is not bad. Everyone agrees with this false high position, so it is a common phenomenon not to explore it. For example, in the insurance industry, business cards are basically managers and general managers. After a long time, everyone will understand the gold content of these jobs in these industries.