Her current personality differs from the seemingly aggressive personality she had during her time in Savanna-ooh-nana, developing her current personality after she met Kirsi. Unlike her cousin Anacha, Lisa enjoys the drama brought on by Kirsi’s perfectionist attitude; though she does cheer her up when she gets down on herself about it.
She seems naïve and simple-minded, seeming not to take life seriously. While Lisa had these traits before moving to Dublin, such as being delighted that Kirsi referred to her and Anacha as beautiful or patting her backside at people she robbed, such simplemindedness was far more violent and nefarious. With time working at Taco Bell, Lisa would spend off-time building a dragon sculpture out of napkins and frightening platypus with her ghost Halloween outfit. When taking the Georgia Milestone instead of answering questions, Lisa took out Thor’s hammer and began making a statue of a giraffe out of her chrome books, then "broke its neck." When showering, she scrubs so much shampoo through her hair that she forms suds all over her body. She also seems fascinated by the smallest details, such as children's alphabet books or a hairclip. She frequently laughs, even when something bad happens. For example, when Kirsi cries due to Ana’s boob’s asymmetry and says she "want to die," Lisa responds with laughter: "Kya ha ha! ♪" and, at other times when she is depressed, even poking her with a stick.
On the few occasions when she loses her temper, her childlike personality is replaced by an almost insane anger, as if her personality returns to how she behaved when a criminal in Savanna-ooh-nana. Her demeanor can be so frightening that it scares Kirsi, even to the point of risking running the mile for once in her damn life.