Soon I will have sticker on my computer.  It says, "
MP3."  This sticker will show the world (or at least the portion of it that comes into my room) that I listen to MP3's.  If you do not know what MP3 is, I will not answer your questions about them.
Ladies will see my computer and ask "What MP3's do you listen to?"  This will be a good starting point for a conversation.  Newbies will say "Dude, I also think that MP3's rock!"  I will banish such newbies from my room, unless the newbie is a lady.  Then I will have to think about it.