Choose a topic suitable for an informal essay. Remember that an informal essay is meant to entertain. Brainstorm your ideas on paper or with a friend. Jot down the things you think are funny about yourself, your family, your pets, your school, your friends, and so forth. Remember to be kind in your humor; it is not funny to destroy someone's self-confidence or to put them down.

Next, group your ideas and place them in an order that makes sense to you. Write a simple list of your points in the order you wish to discuss. Since the writing style for an informal essay should be natural-sounding, friendly, and open, making an informal list seems to work better for this style of writing than a tightly-organized formal outline.

Your finished essay should be at least 300 words long.

Don't forget to proofread your essay!

Thanks for your help :D