Visible crew/equipment: Gibbs walks into Abby's lab while she's resting under the desk, and when Gibbs helps Abby stand up the bouncing shadow of the boom mic/pole is visible at the top, right side of the screen. (00:26:20)
Visible crew/equipment: When Ziva and Tony arrive at the crime scene, a visible marker is on the floor exactly where McGee comes to stand. (00:03:50)
Visible crew/equipment: In the first shot of Ziva and Tony at the pizzeria, just as Fiero tells them about sales during liberty week, the green tape mark is visible on the floor between Tony's feet. (00:10:40)
Chosen answer: "Policing your brass", means to pick up your expended shell casings, after firing your rifle, or pistol.
pross79