Extroverted Feeling (Fe): Jess is a total Fe dom. As Cece says, she could “have an emotional connection with a shoe on the side of the road” She’s constantly found helping her friends and students improve their lives. Jess is affectionate and warm, especially in her speech, trying her best to validate the feelings of others and mirror them as a way to establish a connection. She can take this too far and tends to meddle constantly in the lives of others, with good intentions, but sometimes with disastrous results. When dating Nick, she goes through his box and organizes his bills and pays them without his permission. She tries to convince Cece not to waste her potential by spending her life modeling and tries to get Schmidt to loosen up and not be so controlling. And who can forget all of her parent traps? At her best, she’s a fierce friend, girl friend, and educator, stopping at nothing to help others reach their potential. At her worst, she’s emotionally manipulative and self righteous, trying to get others to conform to her visions and ideals.
Introverted Intuition (Ni): Jess has a singular vision for her life: become a teacher. She’s very devastated when she gets laid off and becomes very un-Jess-like, going from one aimless job to another (Zombie at a haunted house and a server at the Cass Shant) until hanging out with her hipster millennial neighbors makes her realize she needs to get back to teaching. Her and Nicks relationship fails because she is the girl with a plan, imagining their future family in Oregon, even naming them and ascribing each with individual personalities, while he’s the guy who can’t see past tomorrow.
Extroverted Sensing (Se): Jess has a very particular and individual style. She’s always meticulously dressed, even when she sleeps. Jess indulges her senses in a variety of crafts and baking, keeping huge spools of yarn in her room and creating multi cloth collages of her and her loft mates. Her and Bear Claw create a whimsical musical about woodland creatures and she loves to sing constantly, even creating herself a theme song. Occasionally, she can jump right into things, like kissing Nick and running away to Mexico with him. But generally, Jess doesn’t live in the moment like Cece and rather uses her Se as a creative outlet.
Introverted Thinking (Ti): Jess has a very difficult time being objective and unemotional, and like Schmidt, most of her decisions are made with her Fe. Through out the series, her friends help her find some objectivity and act in a way that isn’t totally Fe driven. Coach points out that her plan of taking on too much work in hopes that it impresses her boss and waiting for the vice principal job isn’t logical and rather she should just ask for it. He also helps her navigate the difficulty of dating her subordinate, Ryan, and not letting what the rest of the staff thinks about her get in the way of her being the vice principal.
Note: I’ve seen her typed as an ENFP but I think that is due to the misconception that behavior not cognition equals type. ENFPs aren’t the only type that can be zany and quirky. She is overly concerned with doing what maintains societal and group harmony and is not a Fi user. We always know how Jess is feeling and her dominant Fe drives her to take care of others and be a great teacher, sometimes at the cost of her own feelings and well being.