Found in 2 comments on Hacker News
iterationx · 2009-07-30 · Original thread
If you know psychological manipulation then you can detect if people are doing it to you, http://www.amazon.com/Introducing-NLP-Psychological-Understa...

that should handle the smooth-talking part, but it seems like you'll still need some domain knowledge to figure out if someone is good at their job.

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