I don't read cookies.. I eat them..
What do you mean read them? It just all depends on what the cookie is for and what site, some cookies are not human readable, meant only for the cgi type program at the site that placed the cookie to understand and read them. You'd probably had to have written the program that creates the cookie to understand them.
Are you trying to spy on someone? Your asking very suspicious questions? Your other question is about looking up email addresses with real names. Now this! If you are trying to spy on someone, this site does not involve itself in such activity and you should go elsewhere to ask such questions.