I also learned a lot about public speaking and I think the TMS gave me a lot of confidence in that area.
I learned to love people (when "in"I took to heart that preaching was out of love) show kindness and be forgiving and that has translated nicely outside of the "truth".
Oddly I learned acceptance as well. For example I believed with every fiber of my being that being gay was just proof we were closer to the end and these folks couldn't "help" it. I "loved" the people but "hated" the action. Once leaving it was a nice transition to just accepting people for who they are.
I'm grateful that I learned these qualities. Most of my family are harsh uber jw so I know I learned it from being "in the truth" and not by familial environment:).