For the verbal section... vocab, vocab, vocab! Even if you are already familiar with the traditional types of verbal questions (analogies, sentence completion, etc) from say the SATs back in highschool, the biggest difference I found is a much higher expectation in terms of vocabulary. I got a book of GRE vocab and made flashcards and that improved my score dramatically from the practice test i gave myself before i started reviewing For math, according to the test it is not really much different than SAT style math questions... so just practice, practice, practice! Good luck!!!