Kinda bland, but two moments on the Sunday of Fan Expo 2011:
1) I happened to run into a group of DW cosplayers
early on in the day. Then came a rush of people for an impromptu photoshoot.
2) When I first saw Dalek Auric, I was like "Cool, someone made a remote controlled life size replica of a Dalek." I never ever saw it/him before then so just look at my face at the bottom right when he first spoke in this video