“someone who needed to attend a conference and was unsure about whether or not to wear his yarmulka”
I just finished attending a professional conference in another city, one with a tiny frum community. I gave two talks at the conference, on consecutive days, the first time I’ve ever done that. And I wore my black velvet yarmulka while giving both talks. I also insisted that the talks not be on or close to Shabat. At this conference attended by thousands of professionals I did not see anyone else in a yarmulke. I am proud to be a Jew and am willing to show it.