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At least right now, people are interested in others being honest and open in a way that shows you are human with flaws like everyone else and not living a picture perfect happy life like people tend to post on Facebook. You could talk about dentistry or something hard about your life or what value you bring to steemit. Sharing about yourself has no chance that you may have posted a question or answer that is already out there. Spend some time in the comments of your favorite posters. @stellabelle does phenomenal work and offers an anonymous service if you have things you wish to share, but not have your name attached to it.