Why is Pippa Middleton so popular? Well, she's gorgeous, her sister is The Duchess of Cambridge and she just received some worldwide press coverage as her maid-of-honor. But I would content that her level of extreme sincerity is also one of the reasons. Why are some people thought of as sincere and some are not? Perhaps the most important answer to this question is that their Body Language is highly congruent with their words and their behavior. When there is disparity between the two - people are left with an strong feeling of insincerity. Sincerity detection is similar to lie detection, but it casts a broader net. Those who are insincere, will eventually lie to you - probably sooner than later, and probably often as well. Can you detect sincerity? Do you project this magical quality? On a scale of one to ten, how would your co-workers rate your sincerity? Your spouse? Your Children? I'm amazed this isn't spoken about more often - for it is absolutely one of the most important qualities a person can have - and detect.