When Scully asks Mulder what he's going to tell Skinner at the beginning of the episode, her left eye blinks just before the camera shifts to Mulder. When she tells him that she'll tell Skinner exactly what she saw, her left eye blinks twice more.
Scully: Beginning autopsy of white male, 60 years old, who is definitely having a worse time in Texas than I am. But not by much.
Scully: Mulder, please just keep reminding him you were drugged.
Mulder: Would you stop that!
Scully: Couldn't hurt!
Mulder: Stop it!
Skinner: Scully? Mulder?
Mulder: I was drugged!
At the beginning of the episode, when Mulder tells Scully not to start in with him, Scully leans back in her chair and interlocks her fingers on her stomach as Mulder goes over to the trash can and starts kicking it. When Scully is shown from a different angle, her arms are crossed in front of her. In each camera change, her arms shift position once again: from fingers interlocked to arms crossed and back.
Just as Scully is about to begin her first autopsy, the blade false off of her scalpel. As it does, her thumb can be seen moving up the top of the scalpel, indicating a switch to allow the blade to be removed from the handle.
When Scully weighs the organs, she incorrectly calls the small intestine the large intestine. The large intestine, also called the colon, is only five feet in length, but the organ that she puts in the measuring pan is much longer than that. The small intestine would fit the bill here because it is 20 feet long.
When Mulder was breaking the chair to make a stake, you can see a hand placing the stake that Mulder picks up on the pile of chair bits.
"Yada, yada, yada": Seinfeld
When Scully weighs the first victim's small intestine, instead of saying, "Tissue appears normal," she says, "Yada, yada, yada." The line is a reference to the Seinfeld
season eight episode "The Yada Yada
" that, at the time, made it a popular catchpharse.