The P.E.T. bottle robot transforms the everyday experience of discarding trash through interactive engagement. It captures people's attention with the sounds of a "robot digestive system," interface feedback, and songs, making the interaction highly enticing and promoting behavioral participation. This makes the recycling process memorable. The robot's image symbolizes recycling, promoting the concept of precise recycling with an image of "activity" and "cleanliness." It provides a pleasant experience in its environment, showcasing a unique recycling service through innovative interaction and functionality.