When bored:

Yujin: *Would spending time checking if she forgets something important for the day.

Mashiro: *Would love to have a me time.

Xiaoting: *Would just rest and wouldn't try to mind anyone.

Chaehyun: *Would tease and annoy Dayeon.

Dayeon: *Would do the best to get rid of Chaehyun.

Hikaru: *Would just watch a movie.

Hiyyih: *Would also watch movie with Hikaru.

Yeseo: *Would review her lessons.

Youngeun: *Would pretend to be dead  to make them all worried.