It is called networking.
Networking is the informal social exchange of information and ideas between people who share a profession or a common interest. Networking frequently begins with a single point of commonality.
Networking is making use of personal, commercial, academic, or family relationships to help with a job hunt, attain career objectives, learn more about your industry, or another sector in which you'd like to work. Networking might help you learn about career prospects or gain access to a firm one want to work for.
Therefore, the answer is networking.
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