Finally, I have a word to describe my personality! According to the free online dictionary, an ambivert is someone who exhibits ambiversion.
A personality trait including the qualities of both introversion and extroversion.
I also listened the Susan Cain on Marie4leos YouTube video talking about networking tips for introverts, after which I stumbled on this brilliant TED talk by Susan Cain, which in turn led me to the word Ambivert - which is who I am.
I have a daughter who is growing up with exactly the same personality type and I really want her to grow up self confident and knowing who she is. This journey of self discovery is as much for her as it is for me.