Isn't it curious how you always crack open a beer before settling in for some GTA? Or how you tend to put an anxious hand over your wallet when logging onto PSN? No soldier, it is not curious. Not at all. But this is: Researchers at North Carolina State University claim they've found a way to predict your in-game behavior with "up to 80 percent accuracy." After analyzing the decision-making of 14,000 World of Warcraft players, they noticed that different players prefer different types of achievements.