Just wanted to post back on this so you wonderful people don't think your advice is going into a black hole...
@Angela: I looked into an improv class. I didn't think I would be able to find anything to fit my schedule, but I found a class that meets Saturdays that would work. This month I have a vacation planned so would miss 2 of the 6 classes, but I'll check again next month. At first I thought an improv class would not be scary, only impractical. But once I started to see that it was possible I realized that it is also rather scary.
Sounds like fun.
@Love: I like that advice, I think just using more exagerated movements and voice tonality could add a lot to my persona. I have added "animated" to the list of qualities to work on.
@Steve: I checked out that website and read a bunch of the articles. I even attempted writing some one-liners for the joke contest, an exercise I enjoyed. Not sure if I got any useful tips from the articles, except that self-deprecating humor is the safest. But I will be back for the joke contests.
So, thanks for all the advice, and I'm going to keep working on this.