make flash cards, that's what every one says. But bro i think what i believe make clue cards means one side write same sentence of GRE wordslist . write another side, easy sentence on ur daily life thoughts. That way u can cram it more easily. coz it's like not reading ur play character to prepare where chances are to forget on the moment, but making clue like with ur own thought, like this u will feel like living in GRE. and u may not forget anything. so good luck