I feel I can def pretty accurately tell whether somebody works a tech or some business/finance/marketing/HR job just by the way they speak. Like I talk to them outside of a work context, I make the guess, and then they later reveal what they do and I'm usually right if it's one of those 2 categories
Well I didn't want to mention it because it's not scientific at all but it does generally have this air of very confident smug pompousness that says I'm better and smarter than you
And the thing that separates tech workers from the rest is this extra verbosity and quickness to the cadence they speak. Probably developed from having to communicate every small detail at work and the desire to optimize everything, including the time of their speech