You saw your enemy, but he didn’t see you? Don’t rush to kill him. We know it’s hard to hold back sometimes. However, in a game like CS: GO, patience always pays off. So, if you went behind enemy lines and one of your opponents passed you without noticing your position, do not rush to get an easy frag. He will not inform his allies about you because you have not been seen. They will not be waiting for you at the point where you stop. This is a simple way to unexpectedly kill two or even three opponents instead of just one.