In case anyone wondered:
It lasted two hours. Four people aside from myself showed up. We managed about 5-6 different bookstores from Elgin Street to Bank Street before the party broke up. We never got to the bookstores in the Byward Market(and there are a few good ones scattered across that neighbourhood awaiting the interested).
We had fun anyway.
And - this may or may not shock anyone paying attention - I hope to do this again.
Probably in May or June sometime.
More here and elsewhere as I figure it out.