Smaller shrimp will cook faster, so if you're cooking medium ... and opaque in transparency. If you're using it frozen, first thaw your shrimp in the fridge or in a sealed bag in some cold water ...
You may use frozen shrimp, just make sure to thaw frozen shrimp completely before cooking. Pro tip: If possible, choose wild-caught shrimp; wild-caught shrimp have better flavor and color than ...