```
After honking the car horn a few times, the door of the house opened, and a bald, fat man, covered in tattoos even on his head, came to the doorway.
First he spread his hands, then the big fat man said with a helpless face, "Hey, buddy, I don't have an access control system here, you can just push the door open instead of honking at my door."
Gao Yang laughed heartily, he extended his fist and bumped it with the big fat man's, then said with a smile, "Sorry, force of habit, Jack. Let me introduce a friend, Gao Yuan."
Gao Yuan didn't completely understand their conversation, but he got the general idea, even if he didn't understand, it seemed like he could tell what was happening by looking.
Gao Yuan extended his right hand, while Jack offered his fist.
Somewhat embarrassed, Gao Yuan quickly changed his extended palm into a fist, but then Jack spread his fist open, resulting in another mix-up in the air—one wanting to fist-bump, the other wanting to shake hands.
"Hi."
