Try putting the hybrid gauge on the instrument cluster and try to move with electric motor as much as possible. You eventually get a hang of how maximize the usage hybrid system.
For stopping, try to not to hard break. Riding the break to gradually bring you to a stop is better then coasting until the last second and doing a hard stop. Basically, the electric motor and battery cannot slow you down at an extremely high rate. So if you hard break, friction breaks are used to make up for the difference that the electric motor/battery cannot provide, and kinetic energy is wasted as heat.