All those OG questions you already did? Go back over them again. Ask yourself "I know this is about XYZ. HOW do I know?" Maybe you already knew when you first did it or maybe you didn't - doesn't matter. Either way, you're trying to make very explicit to yourself: what are the actual clues in the problem wording that should tell you "this problem is about XYZ?"
Ask yourself the questions in this article:
http://www.manhattangmat.com/articles/a ... roblem.cfmContinue to ask yourself those questions whenever you're reviewing questions in the future.
Get a bunch of flashcards; on one side, write "When I see ______" and on the other "I'll think / do _______"
When you identify a clue / trigger, make a flashcard. Don't write down the full text of the problem - only write down the relevant text that should trigger a certain thought / idea / solution process / whatever.
A very simple example: When I see "product" I should think "multiply." You know that one already, right? You learned that a long time ago. Now you're looking for more complex things like that - if I see, for example:
integer
factor or any variation that could mean factor
something about the factor being greater than 1
then I immediately think "prime vs. not-prime."
Don't forget to include variations in language. I could see "factor" or I could see "product of two integers," for example - the latter is probably referring to factors.