A good presentation is made by having a good speech to go along with your visuals, and speaking in a loud and clear voice that everyone can understand, and having true, and clear facts and information.
Hope this helps!! :)
I think it a first person narrative perspective
According to the narrator, it is possible to tell a cataleptic is still alive because a heartbeat is perceptible, the body is still warm, some color remains in the cheek, and breathing can be detected by putting a mirror to the lips.
Specifically, Poe writes the cataleptic "is senseless and externally motionless; but the pulsation of the heart is still faintly perceptible; some traces of warmth remain; a slight color lingers within the centre of the cheek; and, upon application of a mirror to the lips we can detect a torpid, unequal, and vacillating action of the lungs."
The purpose of the author’s description of Della’s hair and clothing is to explain how precious and beautiful what Della has sacrificed in order to buy the gift for her husband. This part of a story is taken from "The Gift of the Magi" short story written by O. Henry in 1905. This short story tells about a couple who want to exchange gift for Christmas.