What you do is you walk through the back of m&s and you will see stairs in front of you go up them and then turn left when you get to the top and then you will see the sign for toilets on the right go into them using their is someone in the end cubicle waiting to some fun just knock on their door or go in the next cubicle tap on your foot on the floor and see if they want some fun if they dont just leave them alone