Sure. When you press the accelerator from a stop, look at the "charge/assist" indicator. As you are aware you will see blue bars when IMA is engaging.

What you want to do for "good" mpg while still driving at a reasonable pace is ensure that it is about at the halfway mark.

Keep this level engaged until you reach your target speed (say, 30 mph on a city street or 65mpg on a highway). Then, you must immediately ease up on the pedal.

If you watch the instant mpg display you should see it go way up as you ease up on the pedal.

Now, with your foot just barely pushing down on the accelerator, keep pressed down just enough so you don't slow down. You know you are doing well when the instant mpg display stays at about the same level.

If it goes down a lot you are pushing too hard on the pedal.

Now, all of this advice was for flat terrain. For hills, it gets a bit more complex.

Basically, as you approach an uphill stretch let your car slow down a bit. It's ok since other cars around you will also be slowing down. Make sure that the instant mpg is at least 40 when you are going up. Only a very steep hill will be any less than that. As you reach the top let up a bit on the pedal.

Now ride the hill down. A bit before you reach the very bottom, apply the accelerator. This gives you a boost of speed to make it on the next hill. (If there is no hill coming ignore this). Basically you want to slow down a little uphill and gain speed downhill. That's why cruise control does not give the best mpg in hilly terrain.

Cruise control is great for flat terrain though. I'm looking forward to a cross country drive someday to test it out on some long, flat stretches.