Recall a time when you interacted with a stranger. Was it while standing in line at the grocery store? Going through security at the airport? Asking advice at a bookstore?
Was it a positive experience? If so, why? What occurred that allowed you to feel good about the interaction?
Did you initiate the conversation? If so, what words did you use?
Your task is to place a character in a comparable situation. She is out and about. She runs into someone she doesn’t know, most likely will never see again, yet strikes up a conversation.
Be sure to describe the scene in sufficient detail that we hear the sounds, smell the smells, taste whatever is being offered, but not so much detail up front that the story never gets started.
Give us emotions. Fear? Dismay? Pleasure? But not all at once. Allow us to travel the range of emotions as the character experiences them. Much of this will have to take place in dialogue form.
Then give us a satisfactory ending.
Have fun with this one.