Mind — The social tempo (ESTP: E · INFJ: I · measures your Social energy)

ESTP recharges with people and thinks out loud; INFJ recharges alone and thinks before speaking. The typical friction: ESTP floats the plan aloud and lives it as connection, while INFJ receives it as noise when they're still ordering their thoughts. It works when ESTP leaves silence without reading it as rejection, and INFJ says out loud that they're processing, not disappearing.

Energy — Ideas vs. solid ground (ESTP: S · INFJ: N · measures your Imagination & openness)

INFJ lives in the possible: patterns, connections, what could be. ESTP lives in the tangible: the proven, the concrete, what already is. The typical friction: to ESTP, the ideas of INFJ sound like hot air until they land; to INFJ, the pragmatism of ESTP sounds like a handbrake. Together, if they listen, they're the idea-plus-execution pair; if they don't, a dialogue of the deaf.

Nature — Head vs. bond (ESTP: T · INFJ: F · measures your Warmth)

ESTP decides by logic and criterion; INFJ decides by people and harmony. The typical friction: the bluntness of ESTP reads as coldness to INFJ, and the diplomacy of INFJ reads as circling to ESTP. The trick isn't for one to convert the other: it's agreeing when the moment calls for truth without anaesthetic, and when it calls for care first.

Tactics — Plan vs. slack (ESTP: P · INFJ: J · measures your Order & drive)

INFJ rests when there's a plan and closure; ESTP breathes when options stay open. The typical friction: INFJ lives the "we'll see" of ESTP as insecurity, and ESTP lives the calendar of INFJ as a cage. They rhyme when INFJ builds the skeleton and ESTP brings the ability to improvise when the plan (always) bends.