Visible crew/equipment: As Serenity touches down on the Eavesdown Docks on Persephone, a crew member can be seen pushing Wash's mule down the ramp just after Mal talks to Kaylee about passengers and the ship's Compression Coil.
Visible crew/equipment: When Wash tells Zoë to be careful as they touch down on the Eavesdown Docks on Persephone, a hand can been seen pulling the Mule down Serenity's ramp in the bottom right corner of the shot as Wash leaves.
Visible crew/equipment: When Simon asks Mal why he is so scared of the Alliance, Mal punches him. On the bottom left side of the screen, someone's hands are visible catching Simon as he falls.
Visible crew/equipment: As Wash leave the ship to get supplies, you can see a hand pulling the front of the quad. (00:17:58)
Chosen answer: One of the premises of the show is that the two major Earth societies that survived, and ultimately merged, were the Chinese and Americans. As a result the common language includes much Chinese. Clothing, signage, and building designs also have a heavy Chinese influence.