Could you tell me my balance, please? http://xtube.in.net/ www.xtube.com Jao observes, for instance, that if a consumer looks at a pair of pants for two minutes, and then reads the reviews and clicks and zooms in on the pair of pants, "we'll know that you're fairly interested – versus if you spend two minutes at the site but looked at four different trousers and quickly browsed through."