The people we know deeply affect who else we can know. The theory of six degrees of separation points out that everyone can know everyone in the world through six people, because there are well-connected people, and they have a wide range of friends, and most of them have contact with all kinds of people.

The authors of Don't Dine by Yourself, Keith Ferrari and Tal Raz, put forward eight kinds of well-informed people who cover almost all fields. They are the objects we should get to know well. 1. Restaurant owners

Especially restaurant owners, because they run restaurants, they know all kinds of people from all walks of life. If you can get to know the restaurant owner, it will be like walking into your own kitchen when you get to the restaurant. In particular, he can introduce others to you, which will definitely help you to expand your contacts. 2. human resource agencies

such as recruiters, career consultants, hunters, etc. all belong to this category. If you want to find suitable candidates for yourself, just look for them. They usually know many excellent talents, and they play a decisive role in human resource agencies. 3. lobbyists

For example, lobbyists in politics usually know important people. They are well-informed, well-informed and confident. Lobbyists usually know many people you deserve to know, including powerful people and people with extraordinary achievements.

4. Fundraisers

Both companies and organizations need people who can raise money. They can find money for companies and organizations, so they have many contacts. Knowing them can help them to get in touch with different people. 5. Public relations personnel

Public relations personnel often need to get in touch with the outside world because of their business needs. Therefore, most of them have accumulated rich contacts for themselves, and they have the opportunity to meet many political and business celebrities. It is also very helpful if you want to enter the media industry. 6. Politicians

Most outstanding politicians have good communication skills, which they have to do, because they must often shake hands with people, make speeches and show affinity in front of the masses. Knowing politicians can help you break into the bureaucracy, and their connections are considerable. 7. Journalists

Journalists usually play a very important role. Through their reports, a company can become famous overnight. If you can get to know journalists from various media, they can effectively promote themselves and successfully enhance their popularity if necessary in personal and work. 8. Writers, bloggers, masters

The rise of the social network era has made many writers instantly become famous figures, including writers, bloggers, experts in various fields, etc. Through social networks, they can build their popularity for themselves. Knowing more writers, bloggers and masters in various fields will help to expand your circle of contacts.

(This article is based on Don't Dine Alone, published by commonwealth magazine).