In my opinion, the only reason the tavern is empty, is because it is empty. People drop in for a visit, see that there\'s no-one there, and leave again. The only reason I started tending the bar is so that there would at least be someone in there, and thusly, some people would hang around a bit longer. And in the first week pretty much everybody commented they hadn\'t seen that many people in the tavern for months.
Having an NPC barkeeper isn\'t going to help people hang around much longer. Gimmicks like NPC\'s against who you can play games might help while people are curious about them, but probably not for long. The only reason most people will drop by is because they know, or at least hope, that other people will be there.
Ehm, well, that\'s what I think, anyway.
Edit: Must. Check. Speeling.