you were both on the subway on line 4.
you talked to your friend on the phone from the moment you left the house until you got to her apartment. the passionate dialogue about everything in the world fascinated you so much that you didn't even pay attention to what was happening around you and went into the subway car on the machine, grabbing the handrail. unfortunately, there was a rush hour and a lot of people in the car, which is why you had to stand next to some guy next to you. at least he was also busy with some of his own business and you continued your casual conversation on the phone.
a friend was talking about her last quarrel with her boyfriend, when you, answering, did not notice how you started out of habit to remove the pellets from the coat of the guy opposite. it seemed mundane to be distracted by something small during a phone conversation. but for jungkook, who was watching you with a charmed smile at that moment, it was a novelty.
he grins, but does not move away, stands and looks, waiting for you to notice what you have started to do.