Crowd Tactics
(Races of Destiny, page 156, DnD 3.5)
[Tactical]
You are adept at moving through and fighting in crowds.
Prerequisite
Dodge, Hide 5 ranks
Benefit
The Crowd Tactics feat enables the use of three tactical maneuvers. You only gain these benefits if the crowd is indifferent or friendly.
Moving with the Flow: Entering a square with a crowd in it does not cost you extra movement.
One with the Crowd: You gain a +4 bonus on Hide checks made in square with a crowd.
Master of the Mob: You gain a +4 bonus on Diplomacy or Intimidate checks when attempting to direct a crowd.
Normal
See page 100 of the _Dungeon Master's Guide_ for rules on crowds.