One group cannot speak but can only communicate using hand signals. A third group can speak but cannot make eye contact with anyone from other groups. Try having representatives from each group work together on an activity and see how successful they are. Afterwards, talk about the problems they encountered and ways that they overcame the communication difficulties. A brainstorming activity helps students to examine the interrelationships and value of the individual, community, and work.
People do different types of work for a variety of reasons.
They might have a talent, learn a skill, choose a lucrative profession, work in a family business or just fall into something. Have kids introduce themselves to someone this week who is doing them and the community a service. Have kids ask them what they like about their jobs, what they dislike etc.