Even a topic as conceptual as ethics can become a kinesthetic experience to help students get out of their seats and get the brain-blood flowing. Your students will thank you for thinking of ways to make learning fun and active, such as frequently using patterns of small- and large-group activity and asking students to scribe on flip charts, whiteboards, or smartboards (try to never be the only one standing!).
Signal to your students that you want to meet their needs and encourage their authentic input by asking them to come up with a more physical or active way to carry out an activity they've done before. This provides review and deepening understanding of concepts while innovating and building knowledge ... and having fun.