This is excellent advice. Its really just about trying to spend time doing what you enjoy with other people who enjoy it too. Can be biking, running, video games, dancing, hiking or some sport. The activity makes it enjoyable, sharing with others even more so.
The next step is following up with the new people.
My advice- Be okay with failure. Most people will not follow up, but the ones that do are keepers. 9/10 people will let you down, find the 10%.