How to tell if shrimp is already cooked and what to do with it?
If you look at the label, you see "CKD SHRIMP..." which I read as "cooked shrimp".

Even without the label, you have two indicators for cooked:


the colour: raw shrimp are greyish-green, they turn pink when cooked
the body shape: raw shrimp have a more "stretched" body, they curl up during cooking.