Out where I ride with the road bikers on Pacific Coast Highway over here, people are impressively intelligent about how we ride our road unis!
I hear people say “you need a bigger gear!” as they pass me when I’m already spinning out in 54" mode, and I hear them say, “damn, no freewheel, that’s gotta be tough…”
Sometimes when I shift, people ask me how many gears I have, where I got the hub, and how it can shiftable while still being fixed. I then tell them that, yeah, only about 300ish of these exist, and only maybe 70 as beefy as this one, and they’re all built by this awesome Swiss German guy named Florian Schlumpf, and that if we could have a freewheel, we’d all be running some form of those Rohloff 14-speed bike hubs. So far, nobody’s gotten that we shift with our heels, but when I tell them, I don’t get any double-takes. They just seem to understand! And most people who comment on my hub notice that it’s geared before they ever see me actually use it.
The coach we all go to for help and advice has seen me ride on the back of our spin group, and the first thing he said was that I needed longer cranks and a higher gear ratio. He seemed to instantly know that the reason I was running short (i.e. 150mm instead of 175) cranks is because I didn’t have a big enough gear. He said that if I keep consistently riding above 120RPM on 150mm cranks, I should pay attention to any weird pain, because going outside of that 80-100 RPM range for too long is asking for leg trouble. I didn’t mention to him that, before gears, we’d cruise along at 150-180 RPM on 100mm cranks… 
One guy even said “wow, hydraulic brakes! you better be leaning back hard to use those…” I then proceeded to respond with a kind of holy-crap-I-can’t-believe-you-just-said-something-that-awesome expression, and said he nailed it!
I’ve also heard, “jeez, this wind must be hurting you a hell of a lot more than it’s hurting me…,” which is, for the most part, true, but what it also does is make the pack ride slower so that, even though I have to put in more power than they do, I can do it at a slower RPM because I’m stuck at 54". So if it’s REALLY headwindy and I’m all sugared up, it’s easier to keep up by relying on power instead of spin. (no matter how little actual power a 24mph spin may require due to draft or tailwind or whatnot, we just can’t sustain a 24mph spin on a 54" gear ratio with sensible cranks for very long a time.)
Pretty much every time I go out, I w00t inside due to the ability of the roadies on PCH to just kind of know enough about cycling and physics to understand what pushing around a geared 36 entails.