The StoryBots learn more about how sound recognition sends signals to the brain. Ears receive sound waves and have to interpret them to understand what is going on around us.
Eddie sees Emily again and gets very nervous. He starts to enter the "fight or flee" response, as his heart rate increases and he becomes sweaty. He is finally able to speak to Emily when he decides to "fight" his shyness.
After Kanaalaq gets onto the plane with Charlie, he tries talking to her and asking her if she needs anything to make sure she was comfortable there with him.