'How to look busy at work' for Dummies

1) Place another mouse on your desk without having it connected
2) Switch on bionic ears to watch out for colleagues/employees appraoching
3) A nice earphone with mp3 player to compliment you engaging in deep concentration
4) Click away on your covert mouse when anyone is nearing

NOTE: Remember to save all your work before you start the procedure just in case you start clicking away on the wrong mouse!