I drive what I consider real easy and conservative normally. In the busier part of the suburbs with more frequent stop light, under my "normal conservative" driving I get 14-15MPG with/without eco mode on. When I want to, sometime I drive like my great grandmother pissing everyone else off on the road, a lot of anticipating and coasting to red lights, I can get 19-21 on the same roads with the eco mode on.
Frequent stop and goes and how you stop and go is the main driver of MPG it appears.
Freeway at 55MPH I can get the computer to say 29. 65MPH at 27. 75MPH at 24-25. 85MPH 23.
For that this long drive with 95% highway I calculated 26mpg.
I've driven full tanks before 90% busy suburbs, lots of lights, driving how I normally drive (not aggressive at all but also not making a point to achieve hight MPG and I get a calculated 14MPG.
You may consider the way you drive conservative, but is probably still aggressive compared to how honda drove during their certification.
I keep the odometer page up on my display with the "live" fuel use bar. If during city driving and you make a point to try coasting with the meter at or above the 30-40 mark most of the way, and minimum time spent accelerating below the 10 mark.