No bashing PLEASE...
Hyejeong is just looking at Jimin.. Hyejeong's eyeliner makes her look so so fierce that's why you think she is glaring/staring pretty bad... PLUS they are toooo tired and maybe worried to Mina because Mina's father recently passed away due to cancer, the reason why she has lots of absences is taking care of her father... Btw, Hyejeong and Mina are really close... So please just understand them and also cheer them up ^^