My oldest friend is an ESTJ (go figure) and my brother is an ISTJ. I only have two IRL examples to compare, but I have observed some differences.
First the similarities:
- both like to be in charge and have risen to leadership positions in their occupations
- both tend to be more traditional and "rules" oriented
- both are organized with an air of no-nonsense competence about them
- both are *the* go-to people in a crisis
The I is very serious, controlled, and somewhat controlling. He suffers from hypertension and sometimes seems on the brink of blowing a gasket. His wife (ESFJ) and her friends call him "the male Martha Stewart" because everything has to be *perfect*. He is very protective of his family and his family space, even against his own siblings. (now my older brother the istp is a bit of reckless and loose cannon; but me (infp)? I'm perfectly harmless ).
The E cannot be alone for long periods of time. She craves company. She can move to a new city not knowing anyone and within a couple of weeks she'll be in a bookclub, and will have skating buddies, diving buddies, camping and hiking buddies, and watching football down at the pub buddies. Are these folks close friends? Of course not, but she can walk into a roomful of strangers and manage to find someone to talk to at length about anything. Every time. I used to envy this but now it just amuses me, exhausting as it is.
PS - Neither of them seem to enjoy the internet very much.