Minako wasn't by any means the type to detect the kinds of disturbances that Rei could, but she was in-tune with what was around her and the sudden sharp spike in anger from something or someone in this room certainly got her attention. She was already on alert, ready to take on whoever or whatever had decided to bring her and Usagi to this place should the cause ever decide to make itself known. However, as it were, it wasn't what she wished it to be, but was, instead, a red-headed girl.
Curiosity getting the better of her, the Senshi of Venus plucked her smoothie off the counter after paying for it and strolled over to the younger girl. "What'cha doing?"