Drinking water doesn't change my food intake, probably because I have always consumed huge amounts of water while I eat. I cannot eat without a lot to drink, and that tends to be water with an occasional caffeine-free diet drink thrown in. I have been known to down 64 to 80 ounces of water while eating lunch.
Pointing my fork down doesn't help either. That's how I eat salad, but I can still shovel it in. I just stab the lettuce very, very rapidly and continually.