During the break between classes, you decide to get away from your friends for a quiet coffee so you can study for your next exam.

You order an iced Americano, sit down at a table, open your notebook and start to study.

After a few minutes, a waiter approaches and places your order on the table, and a piece of paper catches your eye. It says "I could help you study, call me :)" and a number is written on the back. You smile and look around, too distracted to study...