We used functional communication training to teach Bob, a 10-year-old student with autism and severe language delays, to reject items by touching an icon. Our initial assessment revealed that Bob's behaviours serving a rejecting function consisted of pushing away, yelling, bear hugging-grabbing, and leaving. We used prompting, differential reinforcement, and error correction procedures to replace pushing away with touching an icon to reject. We examined the effects of this direct intervention on pushing away on Bob's other rejecting behaviours to determine if there was any response co-variation. Results indicate that we were successful at replacing pushing away with touching an icon to reject items, but that this intervention had variable effects on the other behaviours serving a rejecting function. We discuss the implications of our procedures and results for the use of functional communication training in the treatment of problem behaviours in children with autism.