People who cut up the dance floor tend to be more agreeable and more open than wallflowers, according to an analysis at German research institute Max-Planck-Gesellchaft which studied professional and amateur dancers in Germany and Sweden. People who dance were found to be more extroverted and less neurotic than others, including even musicians who aren’t the dancing kind, according to the study, published in the science journal Personality and Individual Differences. “Both dancers and singers show a high degree of extraversion in their personality — which may be due to the fact that their mean…