Street Stranger Stories

Living on a college campus such as Texas Tech University, one is bound to see someone they don't know. It is almost impossible to know each and every one of them. I wish to make my own version of their life: their personality, their quirks, likes, dislikes, even name, all in one or two paragraphs. How accurate will I be? Most likely no where near close. But what's the fun in things being absolute?