The only time I have ever read anyone their Miranda rights is when I or some other officer was going to ask the arrestee questions. You do not try to do it from memory, you read it from a card or form.
If on a form, they either sign it or refuse to sign it. In the refusals, I had them initial instead of signing.
Just kidding - Jeeze can't I have a little fun?
You do not have to Mirandize everyone. You do not have to Mirandize if they are not under arrest.
Stupid cop shows!
You mean it's not like on Reno 911??