Problem-solving tasks can help generate group discussion. If you add in the element of role play, the conversation can become even more engaging. My activity called Walk the Dog requires small groups of students to assume the roles of neighbors and figure out who is able to help walk the dog since its owner is too sick to do the task today. Certain expressions related to social etiquette can easily be worked in, such as It’s no problem at all. I’m happy to help. The role cards will target work-related vocabulary from Lesson 4 in my series English for Professionals: full-time, part-time, flexible schedule, time off, sick day, and personal day.