Leaving the elevator and taking a few steps forward, Li Changlin mimicked the action of ringing the doorbell.
At the same time, he naturally also chimed a "ding dong" sound.
Just then, Li Changlin changed his voice and called out, "Who is it?"
At that moment, someone inside rose to open the door, followed by the creaking sound as it swung open.
Li Changlin immediately stepped forward and held out the bag that, of course, did not actually exist at the moment—it would be added in post-production later—and began to speak, "Your delivery!"
"Oh, the delivery." In truth, Li Changlin was playing several roles at once, but that wasn't important; he would add some characters in post-production soon. For now, his solo performance was mainly to accommodate the TV production process.
Of course, it was the customer who would say this line. After the customer had spoken, naturally it was time to check, so Li Changlin leaned his head forward as well, as if to join the customer in verifying.