A customer is standing in a bookstore, holding a novel, and talking to another person.  
A shopper is standing in a grocery store, holding a basket, and talking to another person.  
A tourist is standing in a souvenir shop, holding a map, and talking to another person.  
A worker is standing in a hardware store, holding a tool, and talking to another person.  
A friend is standing in a clothing store, holding a dress, and talking to another person.