Picking a ripe watermelon can be tricky, but there are some signs to look for! A ripe watermelon often has a yellowish 'ground spot' where it sat on the ground, and it should sound hollow when you tap it. The skin will also be firm and have a dull, not shiny, appearance. Have you tried any of these techniques before, or do you have a favorite way to check? Feel free to share your experiences!