Like Desmond-Harris, you could write about how a public event, like a celebrity death or marriage, an act of heroism or charity, or even the passage of a law helped (or forced) you to confront an aspect of your identity. Consider the complexities of your reaction—the significance the event had for you at the time and the significance the event has for you now. You might make a list of physical traits, as well as beliefs about or aspects of your sense of identity that changed as a result of the event.