What to do after deferrel!!!

<p>I know that all of the deferred students are curious as to what they can do to help gain admission in the RD applicant pool. Should I (we) call the admissions office, send in additional recs or essays, write a letter about the things that have happened since I filled out my application? Do I still have a shot at getting in after being deferred, and if so, what can I do to increase my chances?</p>