> Just say yes to the next offer you get

While they should be saying yes to opportunities to connect with people, I'm not sure if this particular advice is great. If I was in a similar situation to the author of the post, I would find this particular advice demoralizing. It assumes the author of the post has what they are stressing they do NOT have - friends and offers of things to do. If you are not connecting with people you will not magically have offers from people.

It's about forcing yourself to get out there in controlled settings - clubs, volunteer, meetups, classes, and other places people are actively seeking connection.