Happy people

A recent study finds that happy people talk more, and have more meaningful conversations. What I did realize is that when I am not happy, the reverse is true. So I guess this is true then?

I guess what this means is that happy people are more open, and engaging. If that is true, does that mean extroverted people tend to be happy people? and the introverted ones ... are not?

I think I am reading way too much into this. But what I did realize is that when I first read about this article, a friend came to mind as an example of a happy person as opposed to myself.