Instructions
Draw a circle with the mouse while right click pressed. Release the button to drop the ptimémo. You can write on it! Click somewhere else on the screen to save it.
Double-click on the ptimémo : you can now edit the text. Click out of the ptimémo to save it. Copy & Paste is working as well.
Put the mouse on the ptimémo, left-click and move the mouse while keeping the left button pressed. Release it to drop the ptimémo.
Draw a "M" on the ptimémo while keeping the right button pressed:
If you do it over a Post-it on the desktop, you will prompted to choose a friend, and then the post-it will be sticked on his desktop.

Ask your friend their ptimémo's name and you will be able to stick post-its on their desktop!
Draw a "P" while keeping the right button pressed. A window shows up: choose the new font and size and validate.
Draw a "Z" like "Zorro" on the ptimemo while keeping the right button pressed: