The best I got was 2,000 NP. :\ I'm going to try the "feelings" thing next time I play that, lol. Usually I just go with my first gut instinct and if I change my mind, I just force myself to click on the first one I wanted to click on. They say to do that with multiple choice questions on tests so I figured, hey, why not neopets too?!
i use a random number generator to pick a square, doesn't seem to work tho, the best i got was 2k. maybe i should use your 'feeling' method