You've been there: You're at the grocery store looking for a watermelon, but have no idea which one to pick among all the identical-looking green spheres.
Thankfully, there is a way to pick out ripe watermelon, and it's pretty easy to remember.
The trick? Simply look for a "field spot," or the yellowish underside of the watermelon that was in contact with the ground during its growth.
According to the New York Times, you also want a fruit that's uniform in shape and has a dull, matte sheen.
And, of course, the most conventional way to tell if your watermelon is ripe is to knock on it with your knuckles and listen for a nice, deep sound.