Joony teases the trio's while watching their performance on the rooftop.  Suggesting they should try to be more like the famed street dancer, Chinu 
Just know that!!
!لتكن على دراية فقط
Nur damit du’s weißt!
¡Recuérdalo!
¡Que lo sepas!
Ricordatelo!
Fique sabendo!
Так и знай!