Well if you sing in the choir, then you should have some type of idea to what gospel and churchy chords sound like...... Then, start letting your fingers loose when you are playing slower songs. If you just play the chords straight, it won't sound as good.
I look at it like dominos. Once you hit the first one, then the rest neatly fall down in a nice neat order. But if you just throw a pillow on top of them to knock them down, what fun is that? So if you let your fingers fall the same way a set of dominoes would, it'll sound alot better. Hope that helps!
PS, Oh, and read all those links that are posted here too!