1. The mouth of the packing box is an iron stopper. Put your finger into the stopper and pull it up evenly around, or use a screwdriver with a key to open it. Similarly, using the lever principle, insert the spoon or chopsticks into the seam and gently open it upwards. Or take a key (or something flat and hard) and pry it around.
There is an open sign next to the lid of the chocolate box, which means open. Press this sign and there will be a gap, and then open the lid along this gap.