| Make sure the world lives. When do PC's go wandering the planes and return to their home city after years, have some girl that used to be the youth-friend of one of the PC's get married with the PC's former (youth)nemesiss.
Make sure you know everything about your own world, escpecially NPC's.
Have a note ready with ten male names and ten female names, in case you have to come up with a name for a NPC. If you have to think about a name, it takes away the credibility of the NPC
It's cool to meet a (high level) NPC who seems to know everything about the PC's and who apparently even speaks the drow language, when there is a drow PC. But don't make every 10+ level mage be omniscent. It's very frustrating for the PC's and not very credible (was your own 16th lvl mage omniscent...NO!)
Prepare a few random mini-quests in advance, so you can throw them in, whenever you like.
And last....credibility, credibility, credibility, and oh, ehm...credibility!
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Broken promises
"They made us many promises,
more than I can remember.
But they kept but one -
They promised to take our land...
and they took it"
Chief Red Cloud |