1. First find the second shell of crayfish, as shown in the following figure:

2. Then press the second shrimp shell, as shown in the following figure:

3. Next, squeeze both sides of the shrimp body to separate the shrimp meat from the shrimp shell, as shown in the following figure:

4. Then poke the crayfish's body into the shrimp's head, as shown in the following figure:

5. Finally, hold the shrimp tail and pull out the shrimp meat, as shown in the following figure: