How to walk: The very complex way to move is walking/running. By pressing any of the W A S D keys your character will walk/run either forwards, backwards, or strafe to the left or right.

By walking in csgo you will minimize the sound of moving witch will make you more quiet. (how to make your character walk is holding shift.)

Running/moving without pressing shift will make "walk" in a faster speed, and the speed can change depending on what weapon you have out. for example when holding a negev your speed will by very slow. But if your holding a knife your speed will be much faster. but running has its negetives, such as: You make more sound while running.