stolen from PerC
I'll start with a few
often much more aggressive than they are painted in most literature. Sexual 2w3s often look like a combination of 3w2 and 8w7. the way you can tell them apart is
1) they're much more emotional than either a 3 or an 8. they're also much more prone to drama and (in some cases) excessive bravado (think Naruto or Theon Greyjoy)
2) they disintegrate to 8, not 9 and certainly not 5.
3) less apathetic and sociopathic than an 8
2s in general
much more power seeking than they appear on the surface. behind that 9-ish facade of false humility is a confident, socially adept string puller who is an expert at winning people over to his/her side.
they really don't care as much about what people think about them as descriptions seem to suggest. 3s want respect for their accomplishments. as far as being liked and accepted, they really don't care as much, and most would laugh at the idea of bending over backwards to win someone else's acceptance. 3w2s care a little more about this because of their 2 wing, but mostly their charm and seduction are used as tactics for personal advancement rather than their primary objective,
For the longest time it baffled me why 7s are said to mistype at 2...then I read about the Social 7. Social 7s are what most people think of when they think of 7. they're bright, bubbly, cheerful, entertaining and typically enjoy large social events. however, when compared to Self Preservation, Sexual 7s and the core neurosis of 7, Social 7s are really the anti 7 of the bunch. Naranjo refers to Social 7s as anti gluttony and Maitri gives them the theme of Sacrifice.
head center types in general
overall, it is not gut types, but head types who are the most aggressive triad. with the exception of 8w7, gut types spend most of their time repressing their anger in various ways. typically, they let the little things slide and just forget about it. on the other hand, head types will fly into a mental frenzy of "what am I going to do about this?". they might not beat you down with a club, but 6s and 5s are often far more socially vicious than their head center counterparts and more willing to take the time and energy to plot revenge.
when I first read about the social instinct, it made me think of tribal gatherings, bars full of drunken sports fans and high school cliques, but I've come to realize that the Social instinct is generally the most intellectual of the instincts, possessing and almost Ni-ish means of knowing what's going on and how everything and everyone are interconnected (which I'm increasingly finding is a very useful ability that I lack completely). contrary to my previous opinions, So doms are also among the most socially critical types and can typically tell you all manner of things they'd like to see changed in their society or the world at large.