Step one:
First draw a spiral shape as the snails shell.
Step 2:
Then draw a curve on the side, and then connect the snail shell horizontally to form the body.
Step 3:
Then draw two vertical bars on the top of the body.
Step 4:
Draw two round eyeballs.
Step 5:
You also need to add black eyes and draw a smiling face.
Step 6:
Finally, apply a nice color, and the snail is finished.