Going to places where you can meet people. Does OP need me to post one of those links to “let me Google that for you”?

Not to be a douche.

It’s just that, meeting people, is exactly the same as the skills of well, socializing and meeting people.

At the office, the big win was that meeting people around a common goal or mission makes it easier to connect. want to meet people outside the office in this same way? Find some thing you want to do, or some goal, or mission, or thing you like, find where people do it, and show up. Meet up, eventbrite, or just freaking showing up at a place that happens is surprisingly effective.