+mlook
When active moving the mouse or joystick forwards and backwards performs "+lookup" and "+lookdown" respectively. This command is very useful if the player needs to look at objects which are above or below him. Most players execute this command and never remove it. This way they can use the keyboard to move the player forward and back and strafe left and right, while using the mouse to turn the player left and right and to make him look up and down. In order to have this command set permanently you will have to create a file called autoexec.cfg in the qw/ directory and put in the line "+mlook" into that file. By doing this the game will automatically execute the autoexec.cfg file and it will also active that command. Almost every player uses this command nowadays, because the combination of using mouse and keyboard is widely considered the best.