Well, with my partner..
My partner and I have been together 6 months and we've been active almost every single day of it. In the beginning he was too big for me and when we really got involved, he'd end up hurting me quite a bit. I put an end to it by pushing my palms flat against his chest and pulling away, saying something along the lines of "If you don't slow down, we can't do this."
Then it was that he'd get off and I'd be left high and dry. After a week of it, I finally told him that I wanted to feel "special", and what he was doing was making me feel like some one-night stand he wasn't going to have to see ever again. He apologized and we haven't really had problems since.
However, the most frequently used phrase between us is "What do you want?" And if one of us is pleasing the other(like giving oral or something), we always make sure to ask if the other likes what we're doing. That way we know, and the other person is given an opportunity to ask something different or correct.
It's a fundamental relationship thing, I think. How somebody is with you in the bedroom reflects a lot about how they see the relationship. Sit down and have a talk with your partner. Tell them that, as much as you enjoy being with them, you want more feedback both ways. And then try to work on it from there.