Hierarchical sub-type of STP > SP Activator > Sensorials
Typically corresponds to Enneagram Type Three (Four Wing)
Originally excerpted from PersonalityPage.com:
iSTPs have a compelling drive to be seen as outstanding by themselves and others, and will often go to great lengths to achieve this end. As introverts, they enjoy and need to spend time alone, collecting and storing practical information for the benefit of themselves and those in their circle with whom they will generously share. They absorb large quantities of useful facts from the external world, and sort through those facts, making judgments, usually when they are alone. They typically are tough-minded and competitive with strong argumentative skills, though they usually have a strong aversion to direct conflict and will avoid it whenever possible. They often have little patience for dealing with emotional need-meeting and their style is effectivity-centric, direct and often impersonal.
iSTPs are generally very active and people with a great deal of personal magnetism and charm. They like to be up and about, doing things. They are not people who frequently enjoy sitting in committees and debating about long-range planning. They generally only endorse theories or concepts for which they can see a practical application. Adaptable and spontaneous, they respond to what is immediately before them. They usually have strong technical skills, and can be effective tactical leaders. They focus on details and practical things. They have an excellent sense of expediency and grasp of the details which enables them to make quick, effective decisions.
They are usually drawn to cars, motorcycles, planes, rollercoasters--Generally any vehicle capable of providing a sense of excitement and exhilaration. iSTPs are fiercely independent, needing to have the space to make their own decisions about their next step. They generally have a good awareness of rules and regulations, which they often use as boundaries to work around in order to pursue the freedom of doing their own thing. Their sense of adventure and desire for constant action makes iSTPs prone to becoming bored rather quickly.
iSTPs are loyal to their causes and beliefs, and are firm believers that people should be treated with equity and fairness. Although they do not respect the rules of the “System”, they follow their own rules and guidelines for behavior faithfully. They will not take part in something which violates their personal laws. iSTPs are extremely loyal and faithful to their “brothers”.
iSTPs avoid making judgments based on personal values - they feel that judgments and decisions should be made impartially, based on the fact. They are not naturally tuned in to how they are affecting others. They do not pay attention to their own feelings, and even distrust them and try to ignore them, because they have difficulty distinguishing between emotional reactions and value judgments. This may be a problem area for many iSTPs.
An iSTP who is over-stressed may exhibit rash emotional outbursts of anger, or on the other extreme may be overwhelmed by emotions and feelings which they feel compelled to share with people (often inappropriately). An iSTP who is down on themself will foray into the world of value judgments - a place which is not natural for the iSTP - and judge themself by their inability to perform some task. They will then approach the task in a grim emotional state, expecting the worst.
iSTPs are excellent in a crisis situations. They're usually good athletes, and have very good hand-eye coordination. They are good at following through with a project, and tying up loose ends. They usually don't have much trouble with school, because they are introverts who can think logically. They are usually patient individuals, although they may be prone to occasional emotional outbursts due to their inattention to their own feelings.
iSTPs have a lot of natural ability which makes them good at many different kinds of things. However, they are happiest when they are centered in action-oriented tasks which require detailed logical analysis and technical skill. They take pride in their ability to take the next correct step.
iSTPs are optimistic, full of good cheer, loyal to their equals, uncomplicated in their desires, generous, trusting and receptive people who want no part in confining commitments.
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