In essence, it doesn't matter what you write.
Firstly, this is not about neatness. Please don't worry that it's messy. My writing is not pretty! - Craig
A full page of A4 as this will allow you to relax and write naturally. The more writing, the greater accuracy.
A ball point pen.
Just copy from any written content.
Cursive is best but I can do print. Why? Cursive provides more info from the unconscious mind. Both styles is even better.
Blank unlined paper. On an exercise book or similar. This is to show how much pen pressure.