"Hello Alex, once to meet you. I'm Iris, though you probably already know that," Iris said. She concentrated on his voice. She calmly added his to her list of people she could recognize by voice. She stood up and decided she needed to talk to more people. She would relly on voices to identify them. Iris started humming, luckily the classroom was still quiet enough for her to be able to use echolocation to map out the room.