The Delegate is a special helper object used in crowd animation. It serves as an agent for motion created by a Crowd Helper Object and its behaviors. The Crowd object controls any number of delegates, whose motion can then be imparted to a biped or other object. Delegates cannot be rendered.
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Create panel > 
(Helpers) > Object Type rollout > Delegate
The delegate object is shaped like a pyramid. By default, the point of the pyramid indicates the forward direction, the delegate's local Y axis.
The delegate object has two rollouts, described in the topics that follow. Also, you can set parameters for multiple delegates simultaneously, optionally with random variation, using the Crowd object's Edit Multiple Delegates dialog.