Krystal will wave hello to unfamiliar individuals who greet her on campus. This is a great idea for Krystal to interact with others. Krystal is going to try to greet persons who are unfamiliar to her, for example, youngest kids in the campus or professors from other grades. Krystal is good already recognizing familiar faces and voices, but it is important for her to learn how to greet unfamiliar persons and wave hello to them. We are going to reinforce this activity using praise’s strategy in order to set this knowledge in Krystal and try to practice this skill every time that she is in the cafeteria or outside around campus. We implemented this strategy for Krystal especially in the cafeteria, at first she had good time doing this, about a