You can become LESS quiet. If quiet is how you are because it was in-born in you, you're unlikely to change MUCH. But if it's due to some trauma or something, therapy might help.
But you can shift a bit toward being more talkative. Baby steps. Save up funny and interesting things to say -- things you see, hear, do, say, think.
Then you can toss them into conversations as they fit. Talk to shy people. They love the attention.
Think of yourself as an actor, acting as someone a bit less quiet.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.