For the most part, Dayton isn't really a "Touristy" place. There is quite a bit you can do if you live here and want to explore a bit, but nothing that really sticks out as a "must do".
I'd go the the Air Force Museum
if you have any interest in that at all. You can kill 2-3 hours there real easy and it's pretty sweet. I have been there a couple of times and enjoyed it each time.
Dayton Art Institute
has some pretty good exhibits from time to time, have to check when you are in town.
For Beers, I like the Dublin Pub
You might want to check on ActiveDayton.com
to see what events might be going on the weekend you are here.
Most people just get drunk and head back to their hotels when they are in Dayton.