As a stacking that is SP blind, both elements of this stacking are "people-based" in the sense that both SO and SX fulfill their instinctual needs via other people. SP on its own is primarily focused on the self and its body. This sometimes means that SO/SX uses a lot of display to attract people whether they are introverted or extraverted. This could mean clothing, jewelry, hair, memberships, art, music, etc. With SO/SX, social is an open current that invites people in. It could be inviting people for both positive and negative means, but unlike SX/SO, it flows into people. It attracts people. SO/SX has a craving for some kind of interaction whether that be getting a like on social media, getting a compliment on a cool hat, or pissing off a bunch of people. Other stackings can act this way too, but for this stacking, just getting that interaction is instinctual food.