While I think his approach is not the best, even if it worked for him, I am convinced that if you identify a few thigs you like to do you will find some other people with the same interests. There are so many activities that it creates some fragmentation of interests, but the population is still large enough to find others compatible with you.

What I would do: 1. make a list of stuff I would do; 2. check if there are local communities for each item on the list and 3. start joining those communities or look for people interested to join you on the activities on the list. Is that simple, really.