Reina nodded her head when she heard the Doctor guessing the right answer this time.
However, soon she shook her head as 'illusion' wasn't how her predecessor described her powers.
"I can manipulate how the other person perceives their surroundings." She explained in the simplest of words she could think of.
Doctor Bundt had a look of confusion which implied that he was waiting for further elaboration and Reina was left with no choice but to add to the words she had just said.
"I can make people see illusions of things that usually aren't present in reality." She expressed her thoughts while tapping the empty glass which appeared full in the next instant.
She tapped it again and the image of the water disappeared as it was never there in the first place.
"I can also manipulate one's perception into seeing something different from the truth." She added while trying a new trick to help the old man understand it better.