you know that look right away if you get into a street fight, well any fight typically theres reason or fuel to heat things up if you see one raging out and the other standing firm with out expression hes already mentally made the first 2 moves and in most cases won the fight before it began. focus stay attentive and most people really have no chance in a fight with you. some born with that docile yet explosive dangerous instinct others train into it. then theres the bully, 9 times out of 10 theyre what got you to that state. dont let them even begin to think they can put hands on with ill intent, im not about violence out of anger but ill support self defense all day.