Step one:
First draw half an oval.
Step 2:
Then on top, draw another half oval, but note that there are two gaps.
Step 3:
Then draw its ears and nose with arcs.
Step 4:
Using small dots, draw its nostrils and eyes, as well as two square teeth.
Step 5:
Under the head, draw its body using an oval shape.
Step 6:
Then use squares to draw its hands and feet.
Step 7:
For the belly button, use an "x" to represent it, and add a decorative line to the hands and feet.
Step 8:
Finally, paint it with nice colors and the hippopotamus is finished.