Yup.
Outgoing Extrovert (rare)
Outging Introvert (rare)
Shy Extrovert (common)
Shy Introvert (rarest)
It's all about needs and desires.
Introverts NEED time by themselves to feel rested/ alert/ happy/ energetic/ recharged. Being around other people is exhausting to them.
Extroverts NEED time with others to feel rested/ alert/ happy/ energetic/ recharged. NOT being around other people is exhausting to them.
Outgoing folk have no fear of other people / desire time around other people.
Shy folk have a lot of fear surrounding people and situations / desire to be by themselves or in intimate/comfortable situations they're familiar with.
1) Outgoing extroverts are the "classic" extrovert, but they're actually very rare. They just assume that they're welcome, will always be welcome, if they're not welcome then they will be soon enough (although they rarely recognize not being welcome). These are the uber popular kids IF their likes coincide with the majority (they can also be specialized into certian 'fields') and the natural hosts as adults who bring people together by their very assumptions of being welcome, wanting people around them, and their need to be around other people and the energy they radiate. They, as a group, tend to hold a lot of emotional sway over other people. ((The even smaller group, natural leaders, TEND to come from outgoing extroverts... but not always)).
2) Outgoing introverts (rare) have the same sort of assumptions and dive right on on... but they take a lot of alone time... so they dive right on out, as well. They have no problems interacting in a group or with strangers, but have a need to be by themselves. Need to be alone, desire/readiness to be with others.
3) Shy extroverts (VERY common), probably make up the majority of people. They want to be a part of, but doubt their own 'right' to be a part of. Tends to have small groups of friends. Shy extroverts are one of the most common groups. These are people who have a NEED to be around other people, but can't quite join in. When they don't overcome their shyness these people are the classic Wall flowers. The loners who don't want to be. Those that hang around on the edge of the crowd, because they need to be around other people, but are too shy to just join in. NEED to be with others, desire to be alone.
4) Shy introverts don't give a rip. They both need and prefer to be by themselves. This is a very rare group.
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MYSELF... I'm an outgoing introvert. I need a lot of time to myself, but very much enjoy other people, can talk to anyone, etc.
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We're human. We taxonimize (name things). It's how we understand the world around us. Kingdom, phylla, genus, species... sound, tone, pitch, note... sweet, sour, salty, bitter, umami... hardness scales... speeds... eros, amos, fillious... writing, fiction, nonfiction, genre... smile, grin, smirk,
That's what we DO. We name things and sort them into like groups with similar attributes.