You take a deep breath and slowly exhale as you contemplate your response. "I'd try to lose them by doubling back or going into a shop," you say, keeping your voice low so only the other person can hear you. "But if that doesn't work, I might confront them and ask what they want."

The teacher smiles and nods, her eyes never leaving yours. "Very good," she says. "Now, let's see how this plays out." She gestures for you to begin the roleplay. You take a deep breath, trying to ignore the churning sensation in your stomach as you assume the role of someone walking home late at night.