Don't suck.
Well, flexibility is good, but I'd ere on the side of strictness. Patience is a must, lotta idiots in these parts. Being enthusiastic and upbeat is very important. Other than that, just do your best, and screw the rest.
I express the oc's voice, and almost always provide a 4th wall breaking narrator.
Partially because its a neat dynamic, its my writing style, and its fun.