How do I insert friend codes on Animal Crossing?

Question

Having a difficult time trying to insert the Animal Codes.

Answer 1

If i remember correctly you have to get some paper then type the friend code on it then send it to any friend and sooner or later you should get the present in the mail. If thats what your talking about. (Sorry if I am not right)

Answer 2

Easy, Open your menu, by pressing y, or w/e, or just touching the arrow, and I believe it is the Yellow Tab (I Think a Key or a group of people are on it) That's how :)