Blame it on the shoes

Make it to looks like you have to tie your shoes.

Put your head on your desk and with both hands hold your shoeties.

Cabinet

Choose a cabinet in the office that opens rarely. Move the content of it in one side - on the left or on the right.

This is very useful for longer breaks.

Ladgers

Put one big ladger underneath your chin.

Advantage: you can keep your regular working position and stay unobtrusive.
Disadvantage: all your collegues that you share the office with, must be in front of you with turned their back on you.

Cool kamuflage

Use some make up and draw eyes on your eye-lid.

First use some white colour and after that draw a pupil with an eyeliner and shadow.
Fake hairs will simulate an open eye.

Coma in a toilet I

Sit on the toilet with your head on the toilet tank and relax.

Use a role of toilet paper like a holder for your head.
Important: you have to hold a set of keys in your hand, wich will drop on the floor and wake you up when you fall a deep sleep.

Coma in a toilet II

Don't put your head back, but move it forward to the toilet door.
To prevent making an unpleasant red circle on your forehead, put a role of a toilet paper between your head and the toilet door.

Go underground

If your working place can't be seen directly from the entering door, just lay and relax under your desk.
Before that, put your jacket on the chair to look like you are at the work but at that moment out of the office.

Copy machine

Get nervous infront of everyone because there is no more paper in the copy machine.
Open the machine and put your head inside.
Caution: carbonite dust causes cancer.

Absolute concentration

A perfect position for a nap: print some important documents and put your hand between your desk and your head, so the papers are in the area of your eyesight.
Caution: every five minute turn another page.