1) The document suggests different ways of eating Oreo cookies can provide insight into people's personalities. 2) It claims those who eat the whole cookie without separating it are fun but reckless, while those who separate it bite by bite are normal but lack imagination. 3) It also says slowly and methodically eating Oreos indicates being tidy and orderly but also irritatingly anal, while feverish nibbling suggests being quick but prone to mental issues.