If you dont think you can do any better, you have two options, depending on your moral code:
You can lie out of your teeth (as authetic as you can make it) and tell them how its your top choice, you would kill your best friend to go there, and give them reasons why you like their school so much.
The other option is tell them you are very interested in the school for various reasons and would like to let them know that you would love to attend their school.
I guess a possible 3rd option is mail in a nude photo of yourself. Just hope the admissions director is into your gender.