You probably met the vast majority of your friends through a handful of “superfriends”—the buddies of yours who are most like Panda. So when it comes to trying to expand your network and make new friends, do what works. If you look at your Facebook friends or address book contacts, you’ll find that you met many of them through a small group of people. Reaching out to these “superfriends” and saying, “Whom do you know that I should meet?” will produce disproportionate results.