Answer:
The answer is playfulness and fun
Step-by-step explanation:
Spring represents playfulness and fun in "in Just-". An example of this is the word luscious. Luscious means, highly pleasing to the taste or smell; richly satisfying to the senses or the mind; richly adorned. Details regarding "balloon man, whistles, marbles, etc." Reflect upon a happy mood of the poem to the readers.