試吓背一啲嘢,如順序記20個唔係好識嘅英文生字,或者搵本中文成語詞典記住20或30個"不"字頭嘅成語(當然任何字頭的也可,只是要用有一點規律的).背食譜也可試吓.
The mechanism is to help you to be very concentrate on something.
For those you are very familar, of course doesn't work, easily can recite more than 200 items, that's why 數綿羊 is not very good I think.
For those too difficult, you just can't remember even two or three items, and so it's difficult to keep yourself concentrate then.
總之這方法就是令自己好專心噉去諗一啲好死板嘅嘢.背乜嘢就視乎個人