how to manually enter data into a pivot table

Hi,

Im a total newbie with some of the advanced features such as pivot table in excle 2003. I created a data less report ( only has row fields and column fields). I was thinking of entering data into the table manually or though vba scripting. However, I do not know of to enter it manually ( is there a way?). Also is it possible for me to enter string data type into these data fields?

Thanks