Let me give you a significant and relevant to HN personal example. In the early '90s I worked for a small company where the VP of sales, who was our "closer" https://en.wikipedia.org/wiki/Closing_(sales) and I would together make critical sales calls. I'd be wearing my normal casual clothes, Oxford shirt, black jeans, New Balance 99x running shoes (grey back then, but always understated), in part for verisimilitude, and would answer all the technical questions, perhaps make a presentation of the system we were proposing to build for them. Basically convince them that we had the technical chops to get the job done, and this approach was quite successful.
I might be mistaken for the non-energy model of an extrovert during one of these sessions, obviously being e.g. shy or retiring wouldn't work, nor is that in my nature.
The difference I perceived between my extroverted salesmen partners and myself was that I wasn't good for much of anything the next day, as I "recharged my batteries" or whatever you want to call it; call it an "ill-defined handwavy concept" not particularly "a measurable scientific event", but I know my productivity, how it works and doesn't, going back to long before I became a programmer. So I firmly believe this phenomena exists, even if you yourself are in-between both of these "types".
I might be mistaken for the non-energy model of an extrovert during one of these sessions, obviously being e.g. shy or retiring wouldn't work, nor is that in my nature.
The difference I perceived between my extroverted salesmen partners and myself was that I wasn't good for much of anything the next day, as I "recharged my batteries" or whatever you want to call it; call it an "ill-defined handwavy concept" not particularly "a measurable scientific event", but I know my productivity, how it works and doesn't, going back to long before I became a programmer. So I firmly believe this phenomena exists, even if you yourself are in-between both of these "types".