Awareness is the biggest part of self-defense. Everyone know's that and repeatedly says it. Its sensible, you can't avoid or respond to an attack you don't know is coming. But how do you acheive awareness? I don't think its enough to say, "Ok, I'm going to start being more aware." Does anyone have any techniques or exercises for becoming more aware? Maybe games you can play by yourself or with friends to notice more and do it with less concious effort?