Not just humor, but the overall tone of your application essay is remarkably important. It's also difficult to get right. When you are asked to write about your accomplishments, those 750 words on how great you are can make you sound like a braggart. Be careful to balance your pride in your achievements with humility and generosity towards others. You also want to avoid sounding like a whiner -- use your essay to show off your skills, not to explain the injustices that lead to your low math score or failure to graduate #1 in your class.
As I said before, straight to the point novels with little description and smaller words are not bad novels. They can be very good novels. But wanting every novel to be written like that smacks of something the fast food generation wants, something called instant gratification. They want results now, they want their food now. Sometimes I wonder if there is a correlation to the fast food generation to people wanting their novels always simple and straight to the point. To say that novels should only be written one way, which this article seems to be saying, is a disservice to literature and it’s many diverse writers. I ask you all to think it over.
Promote Your Attitude and Performance. Employers will be most interested in your work habits and attitude. They don't expect you to have a lot of experience. If you have perfect or near perfect attendance and are punctual for school and other commitments, you might include language like "Compiled a perfect (or near perfect) record for attendance" when describing an experience. If supervisors, teachers, or coaches have recognized you for a positive attitude or outstanding service, mention it in your description of the activity.