Olivia demonstrates her program for a drone to inject a sedative into an aggressor. One of the stabs, she sticks the knife on Carolina's shirt but the view from the drone's perspective shows the knife on her pants.
Nina replaces a small circuit board on a larger board and attaches a wire to a pin. There are 2 groups of 4 pins separated by a big gap. When she connects the wire, she counts 4 pins from the left end of the row of pins which is also the left pin of the gap between the 2 groups. It is easier to feel for the gap between the 2 groups of pins and connect the wire to the left pin without having to count them.