Answer:
By sympathizing with the young couple.
Explanation:
The whole story is narrated mainly in third person. There are a few times where the narration shifts into first person but the narrator does not seem to be another character in the story and does not expand his view beyond Della's.
It depends on if you argue for or against it. For a thesis to being with community service maybe try something like:
Community service is something that can be very effective on our environment. The possibilities of a clean world can be achieved if more people were to band together and tackle issues such as littering and pollution. However, it seems that right now, many people are not so much for the cause or the effort in saving our planet.