Turn the paper round so that it is facing in a landscape position.
Draw a curved cross section, lengthways across the middle of the egg.
Draw a curved cross section vertically at either end of the egg. These lines act as a guide for where to position the eyes, nose, mouth, and ears.
To give your character more dept, you need to add lines of movement. For example, draw a long downward curved line from the top of the head to form a brow and a short line from the tip of the egg to the first part of the cross section for the wrinkle in the nose. Draw a short upward curve at the bottom of the egg to represent the chin, and then draw a fat thumb shape in the centre of the egg, using the cross section as a guide.This will be the bulge of the cheek.
You can now start filling in the main features. For the eyes, draw two raindrops inside one another, and centre the nose in between the cross section line. The mouth should start from the cheek. For the ears, you want them the start just above where the eye finishes. Make sure if you are drawing a creature like a rabbit that you leave enough room at the top of the page.
Rub out your working lines, and shape the head to the correct proportion by rubbing out the back of the head, and bringing it in line with the ears.