I tell my students to think about a few of their strongest assets as a human being, and then narrate a short story, vignette, or anecdote that adequately reflects those values.
For example, I was working with a student named Heidi who wanted to get into a Nursing College, and she told me that one of her strengths is working with kids. (Heidi's long-term goal, in fact, was to one day become a pediatric nurse practitioner.) We talked about times in Heidi's life where she was able to demonstrate her strength of working with kids and fostering their development. In the end, she was able to recount a time when she was working at a YMCA summer camp in her hometown, and one of the kids had a severe allergic reaction to a bug bite. Heidi then wrote about how she quickly calmed the boy down, sent a coworker to retrieve an EpiPen, administered the shot, and contacted the boy's mother. Overall, recounting this story allowed the Nursing College to see that Heidi is a caring and compassionate individual, especially when it comes to working with youths.
Generally, I think that concrete and specific details such as these will help your application to stand out from the others.