That's interesting, in the long run I would say I'm that way too, but it'll be toward the end of the meeting after things have been hashed out I'd contribute my new perspective. Or even worse for first impressions, I'll often I'll listen to a whole meeting, continue forming my thoughts even after the meeting has ended, and then write a well constructed email back to the key people.

I may have figured out a better solution than was possible for anyone during the meeting, but by sending it late people's impressions during the meetings of me may not be the best.