So I'm going to be running a demo of DFRPG at Imaginarium convention next month, most likely the Night Fears casefile. I'm looking for any tips you guys might have to help me out. This is the first time I'll be running a game for something like this.
The forum warns me of an "over 30 days" age... Hope my reply isn't too late!
I don't know the specific Casefile, but I will presume it's got a mystery of some sort. My experience of mysteries at 'Con events is that they need a bit of extra prep-work...
Lots of times, the players are just not used to the unfamiliar GM and the style of dropping hints/clues; mysteries can stall out, with the timeslot ending and the game only half-complete. Prep a slew of extra clues ranging from subtle nudges to hit-em-over-the-head-with-a-stinky-mackerel obvious.
By the same token, sometimes there will be a startlingly-keen and brilliantly-deductive/inductive player, who will see to the heart of things on the slightest whiff that a clue might be somewhere in the neighborhood. Prep a bunch of red-herring clues, an extra puzzle or two, an extra combat or two, etc... Stuff to keep the game going and keep it entertaining, so it isn't over less than halfway through the timeslot!