<font:Arial Bold:20>Hold your <color:ffff00ff>[Shift]<color:ffffffff> key to start <color:ffff00ff>walking<color:ffffffff> instead of <color:ffff00ff>running<color:ffffffff>.

If you want to walk for a longer time, press the <color:ffff00ff>[R]<color:ffffffff> key to toggle between running and walking modes.