If you are a fan of thoroughbred horses a lot of the farms offer tours and you can pet the million dollar horses. Keeneland is a neat place to tour; it's beautiful.
If you like drinking, a local bar just put beer on tap at the tables and charge by the ounce. It's all the rage at the moment. There's also a local brewery, but I haven't been there yet.
And of course all the distilleries in the area. KY loves its bourbon! Woodford Reserve, Wild Turkey, 4 Roses, and Buffalo Trace are nearby.
If you like scenic stuff, there are many roads and trails and beautiful scenery. There are some civil war forts, historic houses, a shaker village, and some nice parks.
There are lots of shops and malls and stuff on Nicholasville Road, where the book signing is.
There is an aviation museum, a horse museum, and a couple of hands on science museums.
If you want any more details about something specific I mentioned, feel free to ask
We could all nerd out and hang out at the Rusty Scabbard and play some D&D