Try to think of an example that could easily be applied to the context of the job. What sorts of situations would you anticipate where it would be of utmost importance for you to be able to listen to instructions? If you misinterpret them, it could cost money, time or even someone's life. When you give your example, show that you not only listened carefully, but that you also understood instructions before acting.
"My boss explained a process he needed me to follow that I was unfamiliar with. I asked clarifying questions to make sure that I understood what he needed before completing the task."