I try to not EOC as much with passengers because they tend to get scared.
I tend to take this approach.
I'll do mild hypermiling with PAX (especially in the TSX, which comes with strict rules ): loading up hills, neutral coast, timing lights, spacing in traffic (more technique), etc. I rarely drive anyone in the 'Teg -- that would kill my FE!
On rare occasions, it's fun to show people who normally drive large vehicles, what a 4-banger can get with average driving (noting the mileage display at the end of the trip )
It all depends on how comfortable they are with your driving style...
A couple weeks ago my wife and I did a road trip, three hours each way to visit my parents. Wifey let me know she doesn't like me coasting in neutral but I did it anyway and she got used to it. I keep ICE on as it's auto and starter replacement is a bear on this car. No complaints from the wife.
I made two concessions on that trip: I kept speeds mostly 60-70 instead of 10 mph less. And we had windows open in daytime, nothing like an overheated spouse! We did well, 30 mpg overall including 15 min in brutal traffic and taking total 4 adults to a real nice Chinese dinner, about 15-20 minutes each way.
Currently getting +/- 50 mpg in fall weather. EPA is 31/39 so not too shabby. WAI, fuel cutoff switch, full belly pan, smooth wheel covers.
I usually don't EOC or P&G with my mom or dad in the Geo, but I 'hypermile' all the time when driving around with my sister. Habits are hard to break. I'll do around 55mph all the time in the 'giant billboard' and get reminded to speed up to 75mph .
I rarely have passengers. But my wife loves it that I drive slower now. I guess I was a bit scary to drive with before I started hypermiling. She does think I'm a bit goofy for doing the weight reduction, etc. She does like the increase in the FE, though.