How to win for a killer in murder mode

When you play this mode and become a killer
But you don't know how to be inconspicuous?
Here are some tips:
1) Kill 1 player in a hidden place (individual)
2) Do not kill anyone until you kill the main opponents
3) If there are 2 players or more in the place, but you want to kill but not get fired up, so go to a place where you will not be seen and throw a knife and run! (the knife will return)
That's all my 3 tips there will be more options soon when I find out.
Good luck!