S-S-Sammy S-S-Snake

This is a story about Sammy, a green grass snake, who, because of his vanity, almost gets run over. Read why this trauma causes Sammy to now introduce himself to other snakes as "S-S-Sammy S-S-Snake."
Why does S-S-Snake learn to appreciate the fact that his unique tongue can be used to smell so many sensations? What does Sammy learn from Mr. Duffer and how he uses his "Be Quiet" tree?