During my travels I met one fan of the Suzumiya Haruhi series - I knew because I first saw them reading Disappearance. (In fact it was the first time I saw an actual volume in print.) I also came across someone who had seen Chuunibyou, though I did not talk with them. Incredibly, despite attending a small (~30-40 people) anime-watching meeting of sorts, I did not find a single person who had read/seen K-ON!. Nonetheless, I enjoyed meeting other anime fans during my time away.
I also watched anime in a group setting for the first time. We saw the first two episodes of Yu Yu Hakusho and the first of Darker than Black. I don't think I will finish those soon but maybe I will try to at some time.