Talkative:
* Make a question
* Hear the answer
* Repeat the answer with your own words
* Relate yourself with the answer: me too and... / not me, but I experienced something similar...
* Repeat
Try acting or locution classes. Actors do silly exercises to take away the scenic fear. If you have been a dog or a tree in front of several people, then being human seem a lot easier.
I've always thought that if a company claims rights over what you do outside worktime, they should do it not only for your genial ideas, but for the bad ones too. So, if you incur in a stupid debt it must belong to the company. Your newborn baby? The company mus pay alimony. It's all or nothing!