(None of the following should be particularly surprising. I just want to provide additional personal confirmation that well-established cognitive techniques work as advertised.)

I have fairly strong social anxiety and get overstimulated by loud noises/bright lights. I've previously conditioned myself out of most ordinary and small-group anxiety through a)unavoidable practice with socializing and b)getting a black belt. However, until recently, I continued to have problems with a)a strong stress response to crowds and b)inability to hit on women (at least outside of OKCupid, where the invitation to do so is implicit).

Over the last month, I've successfully applied a couple of standard techniques to deal with this. First, about once or twice a week I would go to a crowded, noisy bar alone and just nurse a drink and people watch for an hour. Exposure therapy worked exactly as expected -- my pulse no longer elevates, I don't perspire excessively, etc. in the crowded/noisy environment.

However, I didn't actually talk to anyone, and even though I can generally be about 95% confident that I will be at least the second-most muscular person in any bar I walk into, I have found that the "strong silent type" approach does not work at all. So it was time for step two. Before going to the bar, I made a commitment on Facebook to make a small extra charitable donation if I did not strike up a conversation with an attractive woman within 60 minutes of arrival (with the intention of increasing the donation amount each time in case of failure. Note that I did not choose a donation to a cause I disagree with, because that would have been adding a source of additional stress in an already stressful situation. The actual motivator here was more "not fail publicly in front of my FB friends," since I'll end up donating to AMF or GiveDirectly eventually regardless.)

And it turns out that pre-commitment works as intended, too. I made my first attempt about 20 minutes in. I did strike up a brief but extremely awkward conversation for a minute or two. I consider this a useful outcome, because it reinforces {failed awkwardly --> no serious consequences} on a subconscious level. I tried again another 20 minutes later (with arguably the most attractive woman in the bar at the time), had a pleasant conversation for 5 or 10 minutes, and got her name.

I don't regard any of this as a particularly heroic accomplishment. I just want to reinforce that, as they say, useful technique is useful.