Today, my brother shared with me this video of 30 dolphins that came aground on a Brazilian beach in 2012. Watch it carefully as the action unfolds on the beach as people start to gather as the dolphins come ashore. First, we see the group move from a passive state, to let's do something. For me, the real and very quiet hero first appears in the right frame at one minute and thirty-three seconds. He is our hero because at one minute and forty-five seconds he helps a man grab the tail fin of one dolphin and together they begin to pull it back into deeper water. Immediately, the rest of the caring helpers follow his problem-solving strategy and they all save the dolphins in a short time.
You may want to show this video to a group of students or anyone without saying much of a set up (like I have done here) and see if they pickup on the subtle man's actions that makes the whole group heroes on a beautiful beach on a beautiful day.