In "Monster Hunter", Alex gets jealous of Justin when he moves forward in wizard training so she creates a spell song where she can remember the spells she learns, hoping to catch up with him.Alex and Justin act as foils, as the two are near-polar opposites in terms of personality; Justin is responsible, kind, selfless, sensible, hard-working, and fair in judgment, though not very witty with his words at times mostly like that just because he secretly competes to be the best at magic since he loves it but is easily insecure at witnessing Alex and her great magical feats accomplished so effortlessly by her.
She cannot tell when her dad is being overprotective, she just thinks he is being crazy and does not make the situation better by saying she is growing up.
In "You Can't Always Get What You Carpet", however, she tells her dad she will always be his little girl.
It is revealed in "Doll House" that Alex did not know about magic when she was five.
Riley (Brian Kubach) had been Alex's crush for most of the first season, and to impress him, she calls herself his good luck charm and manipulates Justin without him figuring out to magically win his — and Riley's, as she was always quick to emphasize — baseball game, though when Justin stops once their father makes him realize what Alex has been doing, Alex has to use magic herself by the bleachers in order to be Riley's date, cleverly managing to win the game for Riley even with Jerry and Justin's attempts to foil her magic, further showing how skilled she can be at magic by the way she countered Justin's magic so easily and discreetly at the baseball game where humans who did not know about magic were, despite Justin's and Jerry's knowledge of magic, when it clashes with her understanding of it — however, small her amount of understanding of it may be at the start.
In the episode "Third Wheel", Alex says to Harper that she is like her sister.
Her temporary best friend at Wizard School is Hugh Normous (Josh Sussman), as she said in one episode, that he was "the worst best friend ever".
If Alex does not want to do anything that is school-related, she will make an excuse or scheme about why she does not want to do it, and how unnecessary she finds it or will just simply not do it.
She will often rebel against mandatory assignments with glee and has displayed little, if any, ambition, freely admitting that she always arrives in school during third period and never cares.
Alex often uses magic to solve her problems, which frequently ends up giving her even, more problems than she began with.