ISTP Se-function

ISTP - Ti-Se

2nd function: Se

" An ISTP may be driven to toward sports and outdoor activities as an outlet for their Se. However, there many other ways to exercise Se, such as cooking or painting." https://styx.personality-database.com/personality/8

"Se as a creative (2nd) function (LSI and ESI)

The individual takes direct action to accomplish his goals and desires in the face of external obstacles, and also the interests of his close friends, family, or associates. This may involve prodding others to take necessary action, deliberately applying pressure in specific situations, or abruptly taking on an organizational role. The individual does not generally seek out confrontation, but he is also not afraid of it.

He takes his responsibilities seriously and tends to perform them diligently and with care. He expects the same of others." https://wikisocion.github.io/content/Se.html

"ISTP and ISFP: Auxiliary Se Users

Because Se is their auxiliary function, ISTP and ISFP personalities usually use this function in the healthiest way. While Se might overpower ESP personalities, it complements ISPs. That’s because it works in tandem with their dominant cognitive functions— introverted thinking (Ti) and introverted feeling (Fi).

ISP personalities can be a bit reserved and stuck in their ways, but extraverted sensing allows them to be more open to people and experiences. Most importantly, it doesn’t hinder their planning skills. Although they’re sensing perceivers, ISPs are usually able to evaluate the future outcomes of their actions.

Moreover, because of their auxiliary Se, ISP personalities tend to be more active than most introverts. They don’t like sitting around and prefer to bond with people through mutual activities, such as hiking and board games." https://mypersonality.net/blog/article/extraverted-sensing