[Uncle Chip]

Mark Osterman testified that at the Neighborhood Watch orientation the police told the residents that after making a call to the police they should keep their eyes on the suspect for the police when they arrive.

[xzins]

Keeping an eye on someone has meaning. It says that a neighborhood watcher should track whereabouts. Tracking sometimes involves movement.

[Hoodat]

Mark Osterman testified that at the Neighborhood Watch orientation the police told the residents that after making a call to the police they should keep their eyes on the suspect for the police when they arrive.

This is consistent with Zimmerman's expression of disappointment when Martin ran because he realized that the obligatory eye-contact would be lost.