A common way to represent change in state over time is via a timing diagram.

On impulse he moved around to the opposite side of the couple, in the direction which Grace's broad buttocks were pointed, for a full view of the big boned woman's back side. Now Grace wouldn't mind one iota if he rodded her from the rear.

The politicians would cry wolf at the slightest provocation so when the real threat appeared no one believed them.

Factories enjoying overbursts of good times were in evidence and no one had to pity the unemployed, because of the absence of idle people.