What makes a hero, its what they will do to save others, (This will sound oh so cheesy but fuck off anyways!) there is a hero in everyone but most of us don't choose to embrace it, a hero will fight to help anyone, fight to save anyone really, they are willing to put it all on the line to save the day...
But thats just what I think and I left some stuff out cause I really don't feel like typing the rest down for people who really don't understand the concept