My first fandom is Star Trek, and ST fandom had been around only for a few years when I hooked up with it--while I was in high school. Bought my first fanzines and never looked back. Didn't have any particular reason to talk about or show any zines around at school. I did, however, give a speech in my Speech Class about how the make-up of Mr. Spock's ears was done. And in another class, when we were asked to write about our favorite book, I wrote about The Making of Star Trek (by Whitfield and Roddenberry).

Now, at work on the other hand, I wear my fandom openly -- fannish t-shirts, buttons, posters, memorabilia, etc. Play filk songs in my office. Did a "show and tell" one time on fanzines, for one of my boards.