Erock, although I get what you mean I think you've got it a bit wrong.
One thing is an intro/extroverted personality and other an intro/extroverted behavior.
You can change the behavior, the personality, I'm not too sure. And there's nothing wrong with it, by the way.
Introverted people can act extroverted when they need too, is not natural to them, but they manage to do it. Many actors and business people do it all the time. Also, introverted people aren't necessarily insecure. Introverted is not the same as shy.
Still, I got your point, you mean the behavior.
This was a bit off-topic, but I agree with Mark Lapierre, I'm not too sure I follow, either
