I often play the first Smash Bros against two other friends at once, both of whom are only moderately good at the game but have practiced together often enough to make up for that with good teamwork. Recently, I've noticed one major mistake that both of them make consistantly, and that is their habit of assuming that I'm paying less attention to them when my character is facing away from them. When turning away from one of them and moving toward the other, the first will almost always see that as an opening, even though my character isn't in any way vulnerable at the time. I've explained this problem to them in detail, but they can't seem to break the habit of assuming that character orientation = focus. I know this sort of thing has been discussed in other topics, but I'm curious as to what specific examples you all might have. I'm sure there are plenty of other habits that inexperienced players tend to bring into the game from real life, even though those rarely have anything to do with the game world.