Compare lobsters of similar size. If one is heavier than another, it’s meatier.
Pick a frisky lobster. When held by its body, it should flap its tail and wave its claws around. Avoid lethargic lobsters, as well as those with short antennae or with algae growing on them, signs of long storage.
Cook the lobster the same day you buy it. Keep the lobster in its bag in the refrigerator until you cook it.
Don’t blindly put your hand in the lobster bag. Lobsters have spiny surfaces that can puncture your skin and cause infections. Instead, gently dump the lobster out of the bag.
Don’t remove the claw bands until the lobster is cooked. Those claws are sharp, and they’ll cut if you get pinched.