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Namjoon:
Listening very closely to understand what you're trying to say in your lyrics.
"Damn this is good" /tries to catch you after your performance. He tries to talk to you but he ends up losing you in the crowds of people. Noting to make sure to talk to you next time/
Suga:
Getting hype in the crowed, shouting your name really loud and cheering but gets a bit awkward (and a bit shy) when you notice and look straight at him.
Jin:
"OH MY GOD IT'S Y/N!!" /you'd have Jin fanboy yell you're name and approach you shyly/ "This is the rapper girl i was telling you about" /he'd turn to his members then turn to you/ "Omg hey i really love your performances!"
J-Hope:
This dork would be the loudest one cheering in the crowd. He'd excitedly run up to you after and tell you how much he admired your flow. He'd keep making you laugh.
V:
He'd approach you after one of your performances and tell you how much he loves your style. You'd get talking to him a lot and he'd ask if you'd want to gab a coffee with him tomorrow so you can get to know each other more and say yes, he'd dance all the way home to boast to his members how his favorite rapper accepted his offer.
Jimin:
He'd run to the front of all your fans after your performance and try to get your attention by doing something strange. Once he got it he'd say how he loved your performance and would copy your actions which would get you to laugh. He'd shyly ask for your number with you obviously slipping it to him.
Jungkook:
You'd notice Jungkook as you've seen him in the crowd a few times. He'd shyly approach you and walk out with you. You both start chatting while walking down the street making jokes and laughing a lot. You give him your number and ask to meet him again before going your separate ways.