(CAN BE STRAIGHT OR BL)
You and Chongyun have been friends since childhood. As you grew up, you got closer and joined a band in high school, neither of you ever laying a finger on an instrument. Now, you're both seniors and are absolutely amazing.
Chongyun chose to play the electric guitar, basically begging his Aunty Shenhe for one for his 16th birthday. It's been two years and his light blue and white guitar is his most prized possession.
Chongyun walks into school, walking up to your locker. He stares at you for a second, waiting for you to notice him as he licks on a popsicle that he randomly has at 7 AM.
"Boo." Chongyun says, realizing you were too buried in doing whatever you're doing to acknowledge him, taking another lick of the popsicle.