This is a test of commonsense. Complete the next sentence:

How to store melons 
Store melons at room temperature for up to 2 days to ripen them. 
If your melons aren't ripe yet, you can keep them unrefrigerated for up to 2 days. Leave melons uncovered on a counter or tabletop.
Alternatively, keep melons in a closed paper bag to accelerate the ripening process. Signs of an unripe melon may include shiny skin, pale coloring, and a light mass.