This is actually a very interesting article. And with the risk of attracting the wrath on internet haters, let me propose something that personally helped me a lot and which seems like a very narrow application of the principles described in the article: meeting romantic partners. I tend to be more open in talking to strangers and that has opened up worlds of opportunities to me. But the biggest benefit has certainly…
> Let me qualify this by saying that I do not condone pestering strangers; that is borderline harassment (especially for women). There is really no way to know in advance whether initiating a conversation with a stranger is welcome or not, the only way to find out is to try. It's unreasonable to place the burden of a person to signal "don't impose yourself on me" when you could simply leave them alone and not take th…
There's also loads of non-verbal cues which guide you to who's open to talking to or not. I don't talk to random people much, but I do get asked for directions all the time, even though I'm a 6'2 guy. I think mainly because I'll happily make eye contact and smile at random people who look as if they're a bit confused or lost. I deliver the non-verbal cue that I'm happy to help if they want it. That triggers people in need to ask for help.
If someone struggles picking up on those cues, it might be worth practising at places where people are supposed to be meeting other people. Meetups, networking events, etc.