I was using autoaim bot hack for 3 hours yesterday. It works good, when you press [SPACE] it will aim to the nearest player.
I was thinking about it if there is any way to detect it. Then i saw topic on this forum "Player rotation". If we can detect which angle is player looking, we are able to detect if is he looking straigh to some player (with knowing of player position) for some time. There should be also some limit. We can measure the "looking time" and then compare it with "right" amount of time.
What do you think about it?