I listen to PotterCast, and SnapeCast and everyonce in a while MuggleCast. I read fanfics. I love finding HP artwork and actually think about purchasing some. (Insert blush). But where oh where do you hang a paiting of the Trio? (For you Muggles that would be Harry, Ron and Hermoine). And how to not get teased unmercifully about it from your IRL (in real life) friends?
My MIL and I frequently have HP Movie Marathons. Complete with a HP feast... Unicorn Hair, Gryffin Bites, Butterbeer. So yummy! Ok, so I'm a nerd.
The newest HP obsession is books on CD. I now can crochet my HP inspired fingerless gloves while listening to Jim Dale's lovely english accent. Oh, how I'm a sucker for accents! Must be why I love the magical ENGLISH world of Harry Potter.
Oh, and for fun I dug up this photo from when a few friends and I stood in line for Half Blood Prince (in a SMITHS!!!) ... my friend Lara as Bellatrix Lestrange...