I’m not sure that’s a good idea in situations where the first few meetings are all there are before the wedding, because the boy and girl have to talk a lot in a short amount of time in order to determine if it’s the right thing. Even if it is a situation where there’s plenty of time, if a girl stays quiet initially…well, I’ve seen more than one girl get rejected because her well meaning relatives told her to stay quiet the entire time because people don’t like “bold” girls only to have the boy and his side get put off because she was “too quiet.” Then again, if she talks too much, as you pointed out Mabrook, people tend to get put off by that too. It’s a Catch-22.
I say be yourself. If someone doesn’t like you because of that, then you’re better off. You want to marry the person who admires YOU…not an act you put on.