you and your friends are hanging out, bangchan is also in your friend circle which is: Yeji, sunghoon, hyunjin, you and bangchan. He has a crush on you but doesn't hide it, he flirts with you openly but never asked you out

Bangchan: knock knock dumb bird (he calls you that)

You: who's there?

Bangchan: where when

You: where when who

Bangchan: 8 pm Friday night, my house

He bit his lip and flicked his tongue out to tease you as your friends oooed he then whispered

You're mine now