Okay, so at my schul (reconstructionist) we have comment time. We go through services, have the Torah reading, and then the sermon, and then, when the rabbi's in town, she asks if we have anything to say. It's a very great thing, I think. I like getting her opinion (or the opinion of whichever congregant is leading the services at the time) and being allowed to give my own. Whenever I get to attend services I am extremely happy with them and my attention is absolutely captivated by them, although I think we could daven more, and whenever I don't get to go I am extremely sad because I don't get everyone's opinion on the parshah except that of Rashi's and a few other rabbi's.