Faraaz Kazi - He noticed that she threw away the crumbled bus ticket...

He noticed that she threw away the crumbled bus ticket on the street as soon as she got down. He picked it up and put it in his pocket along with his own a memorabilia of their first date together, just like a strand of her hair he would find later on his shirt and the broken pen cap that she would go on to search in the laboratory and so many other such small things which he would collect.