Using the hand sings to communicate to a deaf person

sign language is how anyone communicates to a deaf person or how that person communicates to others

hope this helps

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.