Imagine you’re at a party where you don’t know anyone. If you’re outgoing, you might walk up to someone and start talking to them. If you’re an introvert, you might wait for someone to talk to you. Either of these tactics might lead to conversations with a couple of people.
Now imagine you have a friend at the party who is outgoing and talkative. Your friend introduces you to everyone she thinks you should know, and you end up talking to 12 different people.
Your friend has played the role of a superconnector.