Bump it? I could never do that, it would be an act of cruelty:
If I bumped it, it would go to the top of the forum. Everyone else would see it there and think that you had posted an update. How disappointed would they be when they saw that it was just a lousy bump from me? I couldn't be so cruel
Seriously though, I think people just read more than they respond. That's what I've found with O&C anyway. If you really want to see how many people are reading, do what I did: Move the story to your own site and set up a counter.