Make cartoon.
Just some ideas:
- You should have a good story.
- You should start with an easy comic character, like a stickman.
- You may want to make a sequel to your cartoon. If you make a cartoon, and plan to make a sequel, you may want to say 'To be continued in issue #2'.
- When a character is speaking, you may want to write what they are saying (or thinking) before you draw the speech bubble or thought cloud.
- Create text to go with your cartoon.
Also,
try to create an emoticon: 
You can use this site Amused Smiley to help you, then animate the emoticon.
If you can't think of anything, use this tutorial to create a "Hole-in-one!"