Who/What/Where Discrimination
Step 1: One item, person in same room
SD1: Present Learner with an item and tell him "Give the (object) to (person)", "Give this to (person)" or "Go and give this to (person)" or "Find (person) and give this to (him/her)."
R1: Learner responds appropriately and then returns to instructor.
SD2: Instructor asks ...