The only real difference is time and description. For example, instead of "He grabbed and fondled her beasts," you have something more along the lines of. "The rough pads of his fingers caressed the soft skin of her pale breast as he cupped the heavy globe, her nipple a hard pebble against his palm."
They say the exact same thing, one is just more in-depth and detailed than the other.
It's the difference between painting a picture with broad strokes, and then painting one with a million tiny, interlinking dots. Time, care, patience seem to be key. Don't rush through a post, there is no hurry. Take your time, elaborate. The basics are in focusing on the senses, what does the character hear, see, feel, how does it feel, how does it taste? Everyone knows what honey tastes like, but you wouldn't say honey tastes like honey when trying to describe it to someone that had never had any. You'd likely say it was sweet, smooth, syrupy, etc, to help them understand.
It's the same with writing. If your character feels something, write about it in such a way as to let the reader feel it, too.
Another step goes a little deeper, into the mind and emotion of the character. It's a little more tricky because you really have to get inside the mind of the character and see the world through their eyes so that your emotions reflect what they would feel and your thoughts mirror the things they would think. It is not easy, a lot of writers struggle with it. The upside is that it really lets you right in a unique way for each character. The down side is that you can get stuck on one character and have a hard time writing others.
For example, I am currently so far into Nadia's frame of mind that I am having a really hard time writing for other characters at the moment. It can get really, really annoying. ^-^ But, it just comes with the territory sometimes.
The best advice I can give is to relax, take your time, and let yourself garner new ideas from other writers. If they use a phrasing you like, feel free to use it. If they describe something in a way you never thought of before and you liked it, then try it. Always experiment.
-- Oh, I almost forgot... *Note* Should I go ahead and post or wait for Jamie? ^-^