I like to let her know when she's doin a real good job on me, nothing loud just a few spoken words. On the other hand, If the girl is fairly quiet I make it a personal mission to get as much noise out of her as humanly possible, not only to avoid flushin my male pride down the shitter but i get my sexual buzz from how much the girl is gettin out of it. The more she enjoys it, the more I do. Deathly silent is a turn off, you might as well be banging blow up brenda :)