Answer:
Temporary evidence of where you've been strolling
What is seen in the water and in the sky? It is part of the rainbow and can be in your eye
You do this into someone's ear when you want to be discreet.
Itβs so fragile even just saying its name can break it. What is it?
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
According to the music industry, you can count on a midnight train and the devil to turn up here.