A fully ripe cantaloupe should have a smooth, slightly waxy skin that is yellowish-orange or golden in color. When you press your finger into the skin, it should give slightly and then bounce back. The stem end of the melon should also be slightly soft to the touch. Additionally, a ripe cantaloupe will have a sweet aroma and when cut open, the flesh should be juicy and orange in color. When selecting a cantaloupe, look for one that is heavy for its size with no bruises or cuts on its skin. Avoid any melons with soft spots or moldy patches as they indicate that the melon is overripe. To ensure you are getting a ripe melon, check for signs of ripeness such as those mentioned above before purchasing it from the store.