When Chidi is talking to Henry, his glasses are silver. In the next scene, they are the black glasses he normally wears.
Whenever someone refers to Janet as a girl/robot/person, she always corrects them by saying she's not (e.g., 'Not a girl'). When Eleanor and Chidi are at the plunger, Eleanor says, 'You want a robot killed right, you have to do it yourself', but Janet doesn't correct her.