3 types of players, 3 best traits:
The leader - Never assume someone they have never ran a quest with knows what they expects. - people cannot read you mind
The group - Listening skills - Even if you suck, if you follow the leaders advise, you can still complete most quests
The Zerger- Knowledge of the quest. - If you wanna race me to the end, cool, just dont slow me down when I gotta go raise your ass!