Shrimp cooks really fast - within minutes! The exact timing will vary depending on the size of your shrimp. Look for the following visual cues: once the shrimp turns a pinkish color and is no longer translucent, it is done! The shape also changes and curves into a "C" shape when cooked. If it continues to curl into an "O" shape, it's overcooked. And if you're still feeling uncertain, check with an instant read cooking thermometer. When the internal temperature of the thickest part reaches 120F, they're done.