You might want to check out the first page of this thread, but it basically says
"Originally Posted by lilmot
Hmmmm.....I can give you my two cents worth. If you decide you want to join you pm Petra with the details of what type of partner you are looking for. For example: someone from UK or Japan, or anyone outside the US etc etc. You can also specify youngling or oldling.....or you can find your own partner by pming someone you see on the list and asking them. If they agree to be your partner, you let Petra know.
Then, you talk to your partner to get some ideas of what they would like to receive, what they like (or you stalk them on MFC ). This part can be fun too as you get to know more about your new friend. You usually make mutual agreements on when you will send each other a parcel. Sometimes things get delayed but you are responsible for keeping in touch with your partner and making sure that they know what is up.
Then, you shop. You wrap or pack in a box. You might include a note or a letter, and you mail it off. (and wait to receive yours)
To me the fun part is doing the shopping for someone else and trying to think of fun, interesting things that your partner would like. Then, of course, one day receiving a box of goods from some foreign port is rather exciting too. I will have to say that I done it several times and I have really enjoyed it and I learned about other places and made some good friends. "