Hyunjin would always hang out at your house since he was best friends with your brother. They were pretty loud when together as they played games. You've spoken to him a few times and he'd be nice to you and smile. He was at your house and your brother left to get some snacks. So he was alone in the living room until you walked in.

"Hey! I haven't seen you...in a while. Come sit down!"

He was smiling at you, looking at you up and down.