<p>You give it to them in a stamped envelope so that they can mail it. The idea is that you’re paying for postage.</p>
<p>Also, while it is possible for someone to write their own peer rec 1) you are not as good at disguising your writing style as you think you are and 2) the person who would do that is not really the type of person who would be very happy at Dartmouth anyway. Dartmouth students on the whole are non-competitive with each other academically (while being way too competitive socially). While it is possible to do that and get in, I think someone who would would also come across as a bad fit for the school in other ways.</p>