Ever since I began reading more about eating to hunger and satiety, I have tried to become of aware of such on a daily basis. One kind of shorthand analogy I've been using for eating to satiety (and then stopping) is "pull the plug". As I'm eating, I take a few seconds every now and then to sense if I'm full or not. If so, I pull the plug and stop eating. Generally, I get up and move around a bit to shift gears.
It really only a took a few days to get tuned into this style of eating. It's so easy to eat when distracted (watching tv, on the computer, etc.) that I think eating to satiety is becoming a lost art. The good news is that once it becomes a habit, it seems to stick (at least in my case).