Give a broad overview of how it might be accomplished using operant conditioning principles. You might start with how you would use shaping and/or chaining to get the behavior started in the direction you want. Explain how you will use either a reinforcement (and tell which one) or punishment to achieve your behavior. Once your behavior is established, explain which schedule of reinforcement you'll be using. Be sure to explain it such that it is clear you understand what the schedule actually means.