I think it's just confidence in general that will help you in social situations. Fake it until you make it (become it). Your self image is largely impacted by your behavior even if the behavior is forced
Psychotherapist Albert Ellis writes in one of his autobiographical recollections that he had tremendous anxiety as a young man about talking to women. So, anticipating the kinds of advice given by today's self-styled dating coaches and pickup artists, he forced himself to try to start conversations with 100 consecutive women he didn't know in public places. After this exercise, he writes that he lost all approach anxiety. I think today's pickup instructors call this something like "day game."
However, I can see a problem with this in the current culture. PUA's in training have become common enough in some cities to draw attention to the phenomenon, and feminists have started to complain about day game as a form of harassment.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.