I’ve had the dog now for just about four days and after walking her three times a day, I’m really curious to find out just what combination of odors, smells, and aromas makes the dog go “aha! this is this spot I must pee in!” As opposed to, say, another spot more than a few inches away. It’s kind of the same thing as when they go sniffing around the streets and out of the myriads of smells they sniff, some just get a shrug of their doggy shoulder and others make them go "I must follow this smell no matter where it takes me...."